Cordon sanitaire


A cordon sanitaire is the restriction of movement of people into or out of a defined geographic area, such as a community, region, or country. The term originally denoted a barrier used to stop the spread of infectious diseases. The term is also often used metaphorically, in English, to refer to attempts to prevent the spread of an ideology deemed unwanted or dangerous, such as the containment policy adopted by George F. Kennan against the Soviet Union.

Origin

The term cordon sanitaire dates to 1821, when the Duke de Richelieu deployed French troops to the border between France and Spain, allegedly to prevent yellow fever from spreading into France.

Disease

A cordon sanitaire is generally created around an area experiencing an epidemic or an outbreak of infectious disease, or along the border between two nations. Once the cordon is established, people from the affected area are no longer allowed to leave or enter it. In the most extreme form, the cordon is not lifted until the infection is extinguished. Traditionally, the line around a cordon sanitaire was quite physical; a fence or wall was built, armed troops patrolled, and inside, inhabitants were left to battle the affliction without help. In some cases, a "reverse cordon sanitaire" may be imposed on healthy communities that are attempting to keep an infection from being introduced. Public health specialists have included cordon sanitaire along with quarantine and medical isolation as "nonpharmaceutical interventions" designed to prevent the transmission of microbial pathogens through social distancing.
The cordon sanitaire is rarely used now because of our improved understanding of disease transmission, treatment and prevention. It remains a useful intervention under conditions in which: 1) the infection is highly virulent the case fatality rate is very high; 3) treatment is nonexistent or difficult; and 4) there is no vaccine, or other means of immunizing large numbers of people are lacking. During the COVID-19 pandemic cordons sanitaires were imposed on geographic regions around the world in an attempt to contain the infection.

16th century

The seminal use of "cordon sanitaire" as a metaphor for ideological containment referred to "the system of alliances instituted by France in post-World War I Europe that stretched from Finland to the Balkans" and which "completely ringed Germany and sealed off Russia from Western Europe, thereby isolating the two politically 'diseased' nations of Europe."
French Prime Minister Georges Clemenceau is credited with coining the usage, when in March 1919 he urged the newly independent border states that had seceded from the Russian Empire and its successor the Union of Soviet Socialist Republics to form a defensive union and thus quarantine the spread of communism to Western Europe; he called such an alliance a cordon sanitaire. This is still probably the most famous use of the phrase, though it is sometimes used more generally to describe a set of buffer states that form a barrier against a larger, ideologically hostile state.

National politics

Beginning in the late 1980s, the term was introduced into the discourse on parliamentary politics by Belgian commentators. At that time, the far-right Flemish nationalist Vlaams Blok party began to make significant electoral gains. Because the Vlaams Blok was considered a racist group by many, the other Belgian political parties committed to exclude the party from any coalition government, even if that forced the formation of grand coalition governments between ideological rivals. Commentators dubbed this agreement Belgium's cordon sanitaire. In 2004, its successor party, Vlaams Belang changed its party platform to allow it to comply with the law. While no formal new agreement has been signed against it, it nevertheless remains uncertain whether any mainstream Belgian party will enter into coalition talks with Vlaams Belang in the near future. Several members of various Flemish parties have questioned the viability of the cordon sanitaire.
With the electoral success of nationalist and extremist parties on the left and right in recent European history, the term has been transferred to agreements similar to the one struck in Belgium: