On the 13 May 1916, Rear Admiral William B. Caperton forced the Dominican Republic's Secretary of WarDesiderio Arias, who had seized power from Juan Isidro Jimenes Pereyra, to leave Santo Domingo by threatening the city with naval bombardment. Three days after Arias left the country, Marines landed and took control of the country within two months, and in November the United States imposed a military government under Rear Admiral Harry Shepard Knapp. In San Francisco de Macoris, however, the situation was somewhat different. Juan Perez, the provisional governor, and a band of followers had occupied a local fort and refused to lay down their arms. This was a direct violation of the directives that were promulgated by the military government installed by the United States. In the town, some 30 miles southeast of Santiago, was one company of the 4th Marine Regiment: the 31st. They had allowed a few hundred supporters of Arias to barricade themselves in the fortaleza. During this time the Marines were being sniped at from inside the fortress and relations with civilians in the town was deteriorating because of the indecisiveness of the Marine commander. Eventually the 31st Company would be reinforced by the 47th Company and First Lieutenant Ernest C. Williams, would take over command. He decided to forcibly oust the Dominicans from their stronghold after they refused to evacuate their positions inside the fortress.
The Battle
During the night of the 29 November Lieutenant Williams along with twelve marines crept as close to the entrance of the fort as was possible without arousing suspicion. On a signal from Lieutenant Williams, the marines made a dash for the open gate. The Dominicans, taken by surprise, were unable to slam the gate closed. The rebels were nonetheless able to let loose with a fusillade from the fort which cut down eight of the Marines in their rush for the gate. Williams and the remaining four men pushed their way through the entrance, firing their weapons as they burst into the fort. After a fierce, ten-minute firefight the fort was secured and the fight was over. During the battle some two-hundred of Perez's followers were able to escape the fort but another one-hundred were forced to surrender inside the fortalezas. Eight of the twelve US Marines were wounded during the battle First Lieutenant Williams received the Medal of Honor for his actions during the battle. This engagement was the last organised resistance, which the 4th Marine Regiment encountered in the Dominican Republic, although minor patrol actions continued to occur for some time.
