51st state


"51st state", in post-1959 American political discourse, is a phrase that refers to areas or locales that are—seriously or facetiously—considered candidates for U.S. statehood, joining the 50 states that presently compose the United States. The phrase has been applied to external territories as well as parts of existing states which would be admitted as separate states in their own right.
Voters in the District of Columbia and Puerto Rico have both voted for statehood in referendums. As statehood candidates, their admission to the Union requires congressional approval. American Samoa, Guam, the Northern Mariana Islands, and the United States Virgin Islands are also U.S. territories and could potentially become U.S. states.
The phrase "51st state" sometimes has international political connotations not necessarily having to do with becoming a U.S. state. The phrase "51st state" can be used in a positive sense, meaning that a region or territory is so aligned, supportive, and conducive with the United States, that it is like a U.S. state. It can also be used in a pejorative sense, meaning an area or region is perceived to be under excessive American cultural or military influence or control. In various countries around the world, people who believe their local or national culture has become too Americanized sometimes use the term "51st state" in reference to their own countries.
Before Alaska and Hawaii became states of the United States in 1959, the corresponding expression was "the 49th state".

Legal requirements

of the United States Constitution authorizes Congress to admit new states into the United States. Historically, most new states brought into being by Congress have been established from an organized incorporated territory, created and governed by Congress. In some cases, an entire territory became a state; in others some part of a territory became a state. As defined in a 1953 U.S. Senate Committee on Interior and Insular Affairs, the traditionally accepted requirements for statehood are:
In most cases, the organized government of a territory made known the sentiment of its population in favor of statehood, usually by referendum. Congress then directed that government to organize a constitutional convention to write a state constitution. Upon acceptance of that constitution by the people of the territory and then by Congress, a joint resolution would be adopted granting statehood. The President would then issue a proclamation announcing the addition of a new state to the Union. While Congress, which has ultimate authority over the admission of new states, has usually followed this procedure, there have been occasions where it did not.

Puerto Rico

has been discussed as a potential 51st state of the United States. However, since 1898, five other territories were annexed in the time Puerto Rico has been a colonial possession. In 2019, H.R.1965 – Puerto Rico Admission Act, only 5% of the lower legislature were in support. The bill was passed on to the House Committee on Natural Resources.
In a 2012 status referendum a majority of voters, 54%, expressed dissatisfaction with the current political relationship. In a separate question, 61% of voters supported statehood. On December 11, 2012, Puerto Rico's legislature resolved to request that the President and the U.S. Congress act on the results, end the current form of territorial status and begin the process of admitting Puerto Rico to the Union as a state. On January 4, 2017, Puerto Rico's new representative to Congress pushed a bill that would ratify statehood by 2025.
On June 11, 2017, another non-binding referendum was held where 97.7 percent voted for the statehood option. The turnout for this vote was only 23 percent. Some leaders of the New Progressive Party say this was because of migration of Puerto Ricans to the mainland. This referendum was boycotted by the two parties opposed to statehood.
On June 27, 2018, the Puerto Rico Admission Act of 2018 was introduced in the U.S. House with the purpose of responding to, and complying with, the democratic will of the United States citizens residing in Puerto Rico as expressed in the plebiscites held on November 6, 2012, and June 11, 2017, by setting forth the terms for the admission of the territory of Puerto Rico as a State of the Union. The admission act has 37 original cosponsors between Republicans and Democrats in the U.S. House of Representatives.
On May 16, 2020, Puerto Rican Governor Wanda Vázquez announced that Puerto Rico will hold a nonbinding referendum on November 3, 2020 to decide whether Puerto Rico should become a state. For the first time in the island's history, the referendum will ask a single, simple question: Should Puerto Rico be immediately admitted as a U.S. state?

Background

Since 1898, Puerto Rico has had limited representation in the United States Congress in the form of a Resident Commissioner, a nonvoting delegate. The 110th Congress returned the Commissioner's power to vote in the Committee of the Whole, but not on matters where the vote would represent a decisive participation. Puerto Rico has elections on the United States presidential primary or caucus of the Democratic Party and the Republican Party to select delegates to the respective parties' national conventions although presidential electors are not granted on the Electoral College. As American citizens, Puerto Ricans can vote in U.S. presidential elections, provided they reside in one of the 50 states or the District of Columbia and not in Puerto Rico itself.
Residents of Puerto Rico pay U.S. federal taxes: import and export taxes, federal commodity taxes, social security taxes, thereby contributing to the American Government. Most Puerto Rico residents do not pay federal income tax but do pay federal payroll taxes. However, federal employees, those who do business with the federal government, Puerto Rico–based corporations that intend to send funds to the U.S. and others do pay federal income taxes. Puerto Ricans may enlist in the U.S. military. Puerto Ricans have participated in all American wars since 1898; 52 Puerto Ricans had been killed in the Iraq War and War in Afghanistan by November 2012.
Puerto Rico has been under U.S. sovereignty for over a century after it was ceded to the U.S. by Spain following the end of the Spanish–American War, and Puerto Ricans have been U.S. citizens since 1917. The island's ultimate status has not been determined, and its residents do not have voting representation in their federal government. Like the states, Puerto Rico has self-rule, a republican form of government organized pursuant to a constitution adopted by its people, and a bill of rights.
This constitution was created when the U.S. Congress directed local government to organize a constitutional convention to write the Puerto Rico Constitution in 1951. The acceptance of that constitution by Puerto Rico's electorate, the U.S. Congress, and the U.S. president occurred in 1952. In addition, the rights, privileges and immunities attendant to United States citizens are "respected in Puerto Rico to the same extent as though Puerto Rico were a State of the Union" through the express extension of the Privileges and Immunities Clause of the U.S. Constitution by the U.S. Congress in 1948.
Puerto Rico is designated in its constitution as the "Commonwealth of Puerto Rico". The Constitution of Puerto Rico, which became effective in 1952, adopted the name of Estado Libre Asociado, officially translated into English as Commonwealth, for its body politic. The island is under the jurisdiction of the Territorial Clause of the U.S. Constitution, which has led to doubts about the finality of the Commonwealth status for Puerto Rico. In addition, all people born in Puerto Rico become citizens of the U.S. at birth, but citizens residing in Puerto Rico cannot vote for the President of the United States nor for full members of either house of Congress. Statehood would grant island residents full voting rights at the federal level. The Puerto Rico Democracy Act was approved on April 29, 2010, by the United States House of Representatives, but was not approved by the Senate before the end of the 111th Congress. It would have provided for a federally sanctioned self-determination process for the people of Puerto Rico. This act would provide for referendums to be held in Puerto Rico to determine the island's ultimate political status. It had also been introduced in 2007.

Vote for statehood

In November 2012, a referendum resulted in 54 percent of respondents voting to reject the current status under the territorial clause of the U.S. Constitution, while a second question resulted in 61 percent of voters identifying statehood as the preferred alternative to the current territorial status. The 2012 referendum was by far the most successful referendum for statehood advocates and support for statehood has risen in each successive popular referendum. However, more than one in four voters abstained from answering the question on the preferred alternative status. Statehood opponents have argued that the statehood option garnered only 45 percent of the votes if abstentions are included. If abstentions are considered, the result of the referendum is much closer to 44 percent for statehood, a number that falls under the 50 percent majority mark.
The Washington Post, The New York Times and the Boston Herald have published opinion pieces expressing support for the statehood of Puerto Rico. On November 8, 2012, Washington, D.C. newspaper The Hill published an article saying that Congress will likely ignore the results of the referendum due to the circumstances behind the votes. U.S. Congressman Luis Gutiérrez and U.S. Congresswoman Nydia Velázquez, both of Puerto Rican ancestry, agreed with The Hills statements. Shortly after the results were published, Puerto Rico-born U.S. Congressman José Enrique Serrano commented "I was particularly impressed with the outcome of the 'status' referendum in Puerto Rico. A majority of those voting signaled the desire to change the current territorial status. In a second question an even larger majority asked to become a state. This is an earthquake in Puerto Rican politics. It will demand the attention of Congress, and a definitive answer to the Puerto Rican request for change. This is a history-making moment where voters asked to move forward."
Several days after the referendum, the Resident Commissioner Pedro Pierluisi, Governor Luis Fortuño, and Governor-elect Alejandro García Padilla wrote separate letters to the President of the United States, Barack Obama, addressing the results of the voting. Pierluisi urged Obama to begin legislation in favor of the statehood of Puerto Rico, in light of its win in the referendum. Fortuño urged him to move the process forward. García Padilla asked him to reject the results because of their ambiguity. The White House stance related to the November 2012 plebiscite was that the results were clear, the people of Puerto Rico want the issue of status resolved, and a majority chose statehood in the second question. Former White House director of Hispanic media stated, "Now it is time for Congress to act and the administration will work with them on that effort, so that the people of Puerto Rico can determine their own future."
On May 15, 2013, Resident Commissioner Pierluisi introduced H.R. 2000 to Congress to "set forth the process for Puerto Rico to be admitted as a state of the Union", asking for Congress to vote on ratifying Puerto Rico as the 51st state. On February 12, 2014, Senator Martin Heinrich introduced a bill in the U.S. Senate. The bill would require a binding referendum to be held in Puerto Rico asking whether the territory wants to be admitted as a state. In the event of a yes vote, the president would be asked to submit legislation to Congress to admit Puerto Rico as a state.

Government funding for a fifth referendum

On January 15, 2014, the United States House of Representatives approved $2.5 million in funding to hold a referendum. This referendum can be held at any time as there is no deadline by which the funds have to be used. The United States Senate then passed the bill which was signed into law on January 17, 2014, by Barack Obama, then President of the United States.

2017 referendum

The previous plebiscites provided voters with three options: statehood, free association, and independence. The Puerto Rican status referendum of 2017 originally offered only two options: Statehood and Independence/Free Association; however, a "current territorial status" was added before the referendum took place. The referendum was held on June 11, 2017, with an overwhelming majority of voters supporting statehood at 97.16%; however, with a voter turnout of 22.99%, it was a historical low. If the majority voted for Independence/Free Association, a second vote would have been held to determine the preference: full independence as a nation or associated free state status with independence but with a "free and voluntary political association" between Puerto Rico and the United States. The specifics of the association agreement would be detailed in the Compact of Free Association that would be negotiated between the U.S. and Puerto Rico. That document might cover topics such as the role of the U.S. military in Puerto Rico, the use of the U.S. currency, free trade between the two entities, and whether Puerto Ricans would be U.S. citizens.
Former Governor Ricardo Rosselló was strongly in favor of statehood to help develop the economy and help to "solve our 500-year-old colonial dilemma... Colonialism is not an option.... It's a civil rights issue... 3.5 million citizens seeking an absolute democracy," he told the news media. Benefits of statehood include an additional $10 billion per year in federal funds, the right to vote in presidential elections, higher Social Security and Medicare benefits, and a right for its government agencies and municipalities to file for bankruptcy. The latter is currently prohibited.
At approximately the same time as the referendum, Puerto Rico's legislators are also expected to vote on a bill that would allow the Governor to draft a state constitution and hold elections to choose senators and representatives to the United States Congress. Regardless of the outcome of the referendum or the bill on drafting a constitution, action by Congress would be necessary to implement changes to the status of Puerto Rico under the Territorial Clause of the United States Constitution.
If the majority of Puerto Ricans were to choose the Free Association option—and only 33% voted for it in 2012—and if it were granted by the U.S. Congress, Puerto Rico would become a Free Associated State, a virtually independent nation. It would have a political and economical treaty of association with the U.S. that would stipulate all delegated agreements. This could give Puerto Rico a similar status to Micronesia, the Marshall Islands, and Palau, countries which currently have a Compact of Free Association with the United States.
Those Free Associated States use the American dollar, receive some financial support and the promise of military defense if they refuse military access to any other country. Their citizens are allowed to work in the U.S. and serve in its military.
On June 11, 500,000 Puerto Ricans voted for statehood, 7,600 voted for independence, and 6,700 voted for status quo.

Guam

is an unincorporated and organized territory of the United States. Located in the western Pacific Ocean, Guam is one of five American territories with an established civilian government.
In the 1980s and early 1990s, there was a significant movement in favor of this U.S. territory becoming a commonwealth, which would give it a level of self-government similar to Puerto Rico and the Northern Mariana Islands. However, the federal government rejected the version of a commonwealth that the government of Guam proposed, because its clauses were incompatible with the Territorial Clause of the U.S. Constitution. Other movements advocate U.S. statehood for Guam, union with the state of Hawaii, or union with the Northern Mariana Islands as a single territory, or independence.
In a 1982 plebiscite, voters indicated interest in seeking commonwealth status. The island has been considering another non-binding plebiscite on decolonization since 1998. Governor Eddie Baza Calvo intended to include one during the island's November 2016 elections but it was delayed again.
A Commission on Decolonization was established in 1997 to educate the people of Guam about the various political status options in its relationship with the U.S.: statehood, free association and independence. The group was dormant for some years. In 2013, the commission began seeking funding to start a public education campaign. There were few subsequent developments until late 2016. In early December 2016, the Commission scheduled a series of education sessions in various villages about the current status of Guam's relationship with the U.S. and the self-determination options that might be considered. The commission's current Executive Director is Edward Alvarez and there are ten members. The group is also expected to release position papers on independence and statehood but the contents have not yet been completed.
Guam has been occupied for over 450 years by the Spanish, the Japanese, and the United States. In 2016, Governor Eddie Calvo planned a decolonization referendum that the indigenous Chamorro people of Guam would solely participate in, in which the three options would be given, including statehood, independence, and free association. However, this referendum for the Chamorro people was struck down by a federal judge on the grounds of racial discrimination. In the wake of this ruling, Governor Calvo has suggested that two ballots be held: one for the Chamorro People and one for eligible U.S. citizens who are non-indigenous residents of Guam. A reunification referendum in Guam and its neighbor, the Northern Mariana Islands has been proposed. A 2016 poll conducted by the University of Guam showed a majority supporting statehood when respondents were asked what political status they supported for Guam.

United Nations support

The United Nations is in favor of greater self-determination for Guam and other such territories. The UN's Special Committee on Decolonization has agreed to endorse the Governor's education plan. The commission's May 2016 report states: "With academics from the University of Guam, was working to create and approve educational materials. The Office of the Governor was collaborating closely with the Commission" in developing educational materials for the public.
The United States Department of the Interior had approved a $300,000 grant for decolonization education, Edward Alvarez told the United Nations Pacific Regional Seminar in May 2016. "We are hopeful that this might indicate a shift in policy to its Non-Self-Governing Territories such as Guam, where they will be more willing to engage in discussions about our future and offer true support to help push us towards true self-governances and self-determination."

Other territories

The U.S. Virgin Islands explored the possibility of statehood in 1984, and most recently in a 1993 referendum, while American Samoa explored the possibility of statehood in 2005 and 2017.

District of Columbia

The District of Columbia is often mentioned as a candidate for statehood. In Federalist No. 43 of The Federalist Papers, James Madison considered the implications of the definition of the "seat of government" found in the United States Constitution. Although he noted potential conflicts of interest, and the need for a "municipal legislature for local purposes", Madison did not address the district's role in national voting. Legal scholars disagree on whether a simple act of Congress can admit the District as a state, due to its status as the seat of government of the United States, which Article I, Section 8 of the Constitution requires to be under the exclusive jurisdiction of Congress; depending on the interpretation of this text, admission of the full District as a state may require a Constitutional amendment, which is much more difficult to enact. However, the Constitution does not set a minimum size for the District. Its size has already changed once before, when Virginia reclaimed the portion of the District south of the Potomac. So the constitutional requirement for a federal district can be satisfied by reducing its size to the small central core of government buildings and monuments.
The District of Columbia residents who support the statehood movement sometimes use the slogan "Taxation without representation" to denote their lack of Congressional representation. The phrase is a shortened version of the Revolutionary War protest motto "no taxation without representation" omitting the initial "No", and is now printed on newly issued District of Columbia license plates. President Bill Clinton's presidential limousine had the "Taxation without representation" license plate late in his term, while President George W. Bush had the vehicle's plates changed shortly after beginning his term in office. President Barack Obama had the license plates changed back to the protest style shortly before his second-term inauguration. President Donald Trump eventually removed the license plate and has signaled opposition to DC statehood
This position was carried by the D.C. Statehood Party, a political party; it has since merged with the local Green Party affiliate to form the D.C. Statehood Green Party. The nearest this movement ever came to success was in 1978, when Congress passed the District of Columbia Voting Rights Amendment. Two years later in 1980, local citizens passed an initiative calling for a constitutional convention for a new state. In 1982, voters ratified the constitution of the state, which was to be called New Columbia. The drive for statehood stalled in 1985, however, when the District of Columbia Voting Rights Amendment failed because not enough states ratified the amendment within the seven-year span specified.
Another proposed option would be to have Maryland, from which the current land was ceded, retake the District of Columbia, as Virginia has already done for its part, while leaving the National Mall, the United States Capitol, and the White House in a truncated District of Columbia. This would give residents of the District of Columbia the benefit of statehood while precluding the creation of a 51st state, but would require the consent of the Government of Maryland.

2016 statehood referendum

On April 15, 2016, District Mayor Muriel Bowser called for a citywide vote on whether the nation's capital should become the 51st state. This was followed by the release of a proposed State Constitution. This Constitution would make the Mayor of the District of Columbia the Governor of the proposed state, while the members of the District Council would make up the proposed House of Delegates.
On November 8, 2016, the voters of the District of Columbia voted overwhelmingly in favor of statehood, with 86% of voters voting to advise approving the proposal.
While the name "New Columbia" has long been associated with the movement, the City Council and community members chose the proposed state name to be the State of Washington, D.C., or the State of Washington, Douglass Commonwealth. The abolitionist Frederick Douglass was a D.C. resident and was chosen to be the proposed state's namesake.

Federal enclave

To fulfill Constitutional requirements of having a Federal District and to provide the benefits of statehood to the 700,000-plus residents of D.C., in the proposed State of Washington, D.C., boundaries would be delineated between the State of Washington, D.C. and a much smaller federal seat of government. This would ensure federal control of federal buildings. The National Mall, the White House, the national memorials, Cabinet buildings, judicial buildings, legislative buildings, and other government-related buildings, etc. would be housed within the much smaller federal seat of government. All residences in the State of Washington, D.C. would reside outside the seat of federal government, except for the White House. The proposed boundaries are based on precedents created through the 1902 McMillan Plan with a few modifications. The rest of the boundaries would remain the same. A map of DC in the event of statehood with the federal enclave can be seen

Admission legislation

On June 26, 2020 the United States House of Representatives voted 232–180 in favor of statehood for Washington, D.C. Passage of this legislation in the Senate is not expected while the Republican Party has a Senate majority. President Trump has also promised to veto D.C. statehood. The legislation was House Resolution 51 in honor of DC potentially becoming the 51st state. The vote was the first time D.C. has ever had a vote for statehood pass any chamber of Congress. In 1993, D.C. statehood legislation was rejected in a US House floor vote 153–277.

US flag

If a new U.S. state were to be admitted, it would require a new design of the flag to accommodate an additional star for a 51st state. However, according to the U.S. Army Institute of Heraldry, the United States flag never becomes obsolete. In the event that a new state is added to the Union and a 51-star flag is approved, any approved American flag may continue to be used and displayed until no longer serviceable.

By status changes of former U.S. territories

Philippines

The Philippines has had small grassroots movements for U.S. statehood. Originally part of the platform of the Progressive Party, then known as the Federalista Party, the party dropped it in 1907, which coincided with the name change. In 1981, the presidential candidate for the Federal Party ran on a platform of Philippine Statehood. As recently as 2004, the concept of the Philippines becoming a U.S. state has been part of a political platform in the Philippines. Supporters of this movement include Filipinos who believe that the quality of life in the Philippines would be higher and that there would be less poverty there if the Philippines were an American state or territory. Supporters also include Filipinos that had fought as members of the United States Armed Forces in various wars during the Commonwealth period.
The Philippine statehood movement had a significant impact during the early American colonial period. It is no longer a mainstream movement, but is a small social movement that gains interest and talk in that nation.

By partition of or secession from current U.S. states

There exist several proposals to divide states with regions that are politically or culturally divergent into smaller, more homogeneous, administratively efficient entities. Splitting a state requires the approval of both its legislature and the U.S. Congress.
Proposals of new states by partition include:
Some countries, because of their cultural similarities and close alliances with the United States, are often described as a 51st state. In other countries around the world, movements with various degrees of support and seriousness have proposed U.S. statehood.

North America

Canada

In Canada, "the 51st state" is a phrase generally used in such a way as to imply that if a certain political course is taken, Canada's destiny will be as little more than a part of the United States. Examples include the Canada–United States Free Trade Agreement in 1988, the debate over the creation of a common defense perimeter, and as a potential consequence of not adopting proposals intended to resolve the issue of Quebec sovereignty, the Charlottetown Accord in 1992 and the Clarity Act in 1999.
The phrase is usually used in local political debates, in polemic writing or in private conversations. It is rarely used by politicians themselves in a public context, although at certain times in Canadian history political parties have used other similarly loaded imagery. In the 1988 federal election, the Liberals asserted that the proposed Free Trade Agreement amounted to an American takeover of Canada—notably, the party ran an ad in which Progressive Conservative strategists, upon the adoption of the agreement, slowly erased the Canada-U.S. border from a desktop map of North America. Within days, however, the PCs responded with an ad which featured the border being drawn back on with a permanent marker, as an announcer intoned "Here's where we draw the line."
The implication has historical basis and dates to the breakup of British America during the American Revolution. The colonies that had confederated to form the United States invaded Canada at least twice, neither time succeeding in taking control of the territory. The first invasion was during the Revolution, under the assumption that French-speaking Canadians' presumed hostility towards British colonial rule combined with the Franco-American alliance would make them natural allies to the American cause; the Continental Army successfully recruited two Canadian regiments for the invasion. That invasion's failure forced the members of those regiments into exile, and they settled mostly in upstate New York. The Articles of Confederation, written during the Revolution, included a provision for Canada to join the United States, should they ever decide to do so, without needing to seek U.S. permission as other states would.
The United States again invaded Canada during the War of 1812, but this effort was made more difficult due to the large number of Loyalist Americans that had fled to what is now Ontario and still resisted joining the republic. The Hunter Patriots in the 1830s and the Fenian raids after the American Civil War were private attacks on Canada from the U.S. Several U.S. politicians in the 19th century also spoke in favor of annexing Canada, as did Canadian politician William Lyon Mackenzie, who set up a rogue Republic of Canada on a small island near the U.S. border during the Upper Canada Rebellion.
In the United States, the term "the 51st state" when applied to Canada can serve to highlight the similarities and close relationship between the United States and Canada. Sometimes the term is used disparagingly, intended to deride Canada as an unimportant neighbor. In the 1989 Quebec general election, the political party Parti 51 ran 11 candidates on a platform of Quebec seceding from Canada to join the United States. The party attracted just 3,846 votes across the province, 0.11% of the total votes cast. In comparison, the other parties in favor of sovereignty of Quebec in that election got 40.16% and 1.22%.
Alberta
American geopolitics expert Peter Zeihan argued in his book The Accidental Superpower the Canadian province of Alberta would benefit from joining the United States as the 51st state. There is growing support for Alberta separatism resulting from federal government policies which are believed to be harming the province's ability to build pipelines for the province's oil and gas industry and federal equalization payments. In a September 2018 poll, 25% of Albertans believed they would be better off separating from Canada and 62% believed they are not getting enough from confederation.
Newfoundland
In the late 1940s, during the last days of the Dominion of Newfoundland, there was mainstream support, although not majority, for Newfoundland to form an economic union with the United States, thanks to the efforts of the Economic Union Party and significant U.S. investment in Newfoundland stemming from the U.S.-British alliance in World War II. The movement ultimately failed when, in a 1948 referendum, voters narrowly chose to confederate with Canada.

Mexico

In 1847–48, with the United States occupying Mexico at the conclusion of the Mexican–American War, there was talk in Congress of annexing the entirety of Mexico. The result was the Mexican Cession, also called the Treaty of Guadalupe Hidalgo for the town in which the treaty was signed, in which the U.S. annexed over 40% of Mexico. Talk of annexing all of Mexico disappeared after this time.
In 1848 a bill was debated in congress that would have annexed the Republic of Yucatán, but a vote failed to take place.

Central America

Due to geographical proximity of the Central American countries to the U.S. which has powerful military, economic, and political influences, there were several movements and proposals by the United States during the 19th and 20th centuries to annex some or all of the Central American republics. However, the U.S. never acted on these proposals from some U.S. politicians; some of which were never delivered or considered seriously. In 2001, El Salvador adopted the U.S. dollar as its currency, while Panama has used it for decades due to its ties to the Canal Zone.

Cuba

In 1854 the Ostend Manifesto was written, outlining the rationale for the U.S. to purchase Cuba from Spain, implying taking the island by force if Spain refused. Once the document became published, many northern states denounced the document.
In 1859, Senator John Slidell introduced a bill to purchase Cuba from Spain.
Cuba, like many Spanish territories, wanted to break free from Spain. A pro-independence movement in Cuba was supported by the U.S., and Cuban guerrilla leaders wanted annexation to the United States, but Cuban revolutionary leader José Martí called for Cuban nationhood. When the U.S. battleship Maine sank in Havana Harbor, the U.S. blamed Spain and the Spanish–American War broke out in 1898. After the U.S. won, Spain relinquished claim of sovereignty over territories, including Cuba. The U.S. administered Cuba as a protectorate until 1902. Several decades later in 1959, the Cuban government of U.S.-backed Fulgencio Batista was overthrown by Fidel Castro who subsequently installed a Marxist–Leninist government. When the U.S. refused to trade with Cuba, Cuba allied with the Soviet Union who imported Cuban sugar, Cuba's main export. The government installed by Fidel Castro has been in power ever since. In 2016, the U.S. eased trade and travel restrictions against Cuba. United Airlines submitted a formal application to the U.S. Department of Transportation for authority to provide service from four of its largest U.S. gateway cities—Newark/New York, Houston, Washington, D.C. and Chicago—to Havana's José Martí International Airport.

Dominica

In 1898, one or more news outlets in the Caribbean noted growing sentiments of resentment of British rule in Dominica, including the system of administration over the country. These publications attempted to gauge sentiments of annexation to the United States as a way to change this system of administration.

Dominican Republic

On June 30, 1870, the United States Senate took a vote on an annexation treaty with the Dominican Republic, but it failed to proceed.

Greenland

During World War II, when Denmark was occupied by Nazi Germany, the United States briefly controlled Greenland for battlefields and protection. In 1946, the United States offered to buy Greenland from Denmark for $100 million but Denmark refused to sell it. Several politicians, including U.S. president Donald Trump, and others have in recent years argued that Greenland could hypothetically be in a better financial situation as a part of the United States; for instance mentioned by professor Gudmundur Alfredsson at University of Akureyri in 2014. One of the actual reasons behind U.S. interest in Greenland could be the vast natural resources of the island. According to WikiLeaks, the U.S. appears to be highly interested in investing in the resource base of the island and in tapping the vast expected hydrocarbons off the Greenlandic coast.

Haiti

Time columnist Mark Thompson suggested that Haiti had effectively become the 51st state after the 2010 Haiti earthquake, with the widespread destruction prompting a quick and extensive response from the United States, even so far as the stationing of the U.S. military in Haitian air and sea ports to facilitate foreign aid.

Asia

Hong Kong

The idea of admission to the United States was discussed among some netizens based on Hong Kong's mature common law system, long tradition of liberalism and vibrant civil society making it a global financial hub very much similar to London or New York. alongside proposals of becoming independent, rejoining the Commonwealth, confederation with Canada as the eleventh province or the fourth territory, returning to British rule as a dependent territory, joining the Republic of China, or acceding to other federations as a number of city-states.
Since the 2019–20 Hong Kong protests, discussions on the topic seem to have increased again. However, after the Chinese regime's unilateral enactment of a catered national security law for Hong Kong, such discussions have become "illegal" on suspicion of "secession".

Iraq

Several publications suggested that the Iraq War was a neocolonialist war to make the Republic of Iraq into the 51st U.S. state, though such statements are usually made in a facetious manner, as a tongue-in-cheek statement.

Israel and Palestine

Several websites assert that Israel is the 51st state due to the annual funding and defense support it receives from the United States. An example of this concept can be found in 2003 when Martine Rothblatt published a book called Two Stars for Peace that argued for the addition of Israel and the Palestinian territories as the 51st and 52nd states in the Union. The American State of Canaan, is a book published by Prof. Alfred de Grazia, political science and sociologist, in March 2009, proposing the creation of the 51st and 52nd states from Israel and the Palestinian territories.

Japan

In Article 3 of the Treaty of San Francisco between the Allied Powers and Japan, which came into force in April 1952, the U.S. put the outlying islands of the Ryukyus, including the island of Okinawa—home to over 1 million Okinawans related to the Japanese—and the Bonin Islands, the Volcano Islands, and Iwo Jima into U.S. trusteeship. All these trusteeships were slowly returned to Japanese rule. Okinawa was returned on May 15, 1972, but the U.S. stations troops in the island's bases as a defense for Japan.

Taiwan

A poll in 2003 among Taiwanese residents aged between 13 and 22 found that, when given the options of either becoming a province of the People's Republic of China or a state within the U.S., 55% of the respondents preferred statehood while only 36% chose joining China. A group called Taiwan Civil Government, established in Taipei in 2008, claims that the island of Taiwan and other minor islands are the territory of the United States.

Europe

Albania

has often been called the 51st state for its perceived strongly pro-American positions, mainly because of the United States' policies towards it. In reference to President George W. Bush's 2007 European tour, Edi Rama, Tirana's mayor and leader of the opposition Socialists, said: "Albania is for sure the most pro-American country in Europe, maybe even in the world... Nowhere else can you find such respect and hospitality for the President of the United States. Even in Michigan, he wouldn't be as welcome." At the time of ex-Secretary of State James Baker's visit in 1992, there was even a move to hold a referendum declaring the country as the 51st American state. In addition to Albania, Kosovo is seen as a 51st state due to the heavy presence and influence of the United States. The U.S. has had troops and the largest base outside U.S. territory, Camp Bondsteel, in the territory since 1999.

Azores

There was a movement among the Azores archipelago to break away from Portugal and join the United States in the late 19th century through the early 20th century. Feeling that they were being unfairly exploited by the authorities on the mainland, this movement believed the best solution was to have the United States govern them. This movement was fueled by a large number of immigrants to the United States, particularly to the New England states, for labor and educational reasons. Also establishing a close social connection between the Azores and the United States were American whaling companies. New England and New York-based whaling ships frequently used the Azores as an overseas base of operations and employed large number of the local population to man the ships. The movement to have the United States annex the Azores reached its climax during World War I when the United States Navy established a base of operations in the Azores. Sensing that the Americans were doing more to defend the Azores from the Germans than the Portuguese Government was, particularly during the raid of SM U-155 on the Azores in 1917, many local politicians openly demanded a change. American Naval officers and politicians, notably Assistant Secretary of the Navy Franklin Roosevelt, however, dismissed any idea of the United States taking control.

Denmark

In 1989, the Los Angeles Times proclaimed that Denmark becomes the 51st state every Fourth of July, because Danish citizens in and around Aalborg celebrate the American independence day.

Poland

Poland has historically been staunchly pro-American, dating back to General Tadeusz Kościuszko and Casimir Pulaski's involvement in the American Revolution. This pro-American stance was reinforced following favorable American intervention in World War I and the Cold War. Poland contributed a large force to the "Coalition of the Willing" in Iraq. A quote referring to Poland as "the 51st state" has been attributed to James Pavitt, then Central Intelligence Agency Deputy Director for Operations, especially in connection to extraordinary rendition.

Sicily (Italy)

The Party of Reconstruction in Sicily, which claimed 40,000 members in 1944, campaigned for Sicily to be admitted as a U.S. state. This party was one of several Sicilian separatist movements active after the downfall of Italian Fascism. Sicilians felt neglected or underrepresented by the Italian government after the annexation of 1861 that ended the rule of the Kingdom of the Two Sicilies based in Naples. The large population of Sicilians in America and the American-led Allied invasion of Sicily in July–August 1943 may have contributed to the sentiment.

United Kingdom and Republic of Ireland

The United Kingdom has sometimes been called the 51st state due to the "Special Relationship" between the two countries, particularly since the close cooperation between Franklin D. Roosevelt and Winston Churchill during World War II, and more recently continued during the premierships of Margaret Thatcher and Tony Blair.
In a December 29, 2011 column in The Times, David Aaronovitch said in jest that the UK should consider joining the United States, as the British population cannot accept union with Europe and the UK would inevitably decline on its own. He also made an alternative case that England, Scotland, and Wales should be three separate states, with Northern Ireland joining the Republic of Ireland and becoming an all-Ireland state.

Oceania

Australia

In Australia, the term '51st state' is used as a disparagement of a perceived invasion of American cultural or political influence.

New Zealand

In 2010 there was an attempt to register a 51st State Party with the New Zealand Electoral Commission. The party advocates New Zealand becoming the 51st state of the United States of America. The party's secretary is Paulus Telfer, a former Christchurch mayoral candidate.
On February 5, 2010, the party applied to register a logo with the Electoral Commission. The logo—a U.S. flag with 51 stars—was rejected by the Electoral Commission on the grounds that it was likely to cause confusion or mislead electors., the party remains unregistered and cannot appear on a ballot.