Question: Which nation shares Hispaniola with the country the United States intervened with, after which The Inter-American Peace Force (IAPF) was established?

full_context: Document 1: Dominican Republic: The Dominican Republic (Spanish: "República Dominicana" ] ) is a country located in the island of Hispaniola, in the Greater Antilles archipelago of the Caribbean region. It occupies the eastern five-eighths of the island, which it shares with the nation of Haiti, making Hispaniola one of two Caribbean islands, along with Saint Martin, that are shared by two countries. The Dominican Republic is the second-largest Caribbean nation by area (after Cuba) at 48445 km2 , and third by population with approximately 10 million people, of which approximately three million live in the metropolitan area of Santo Domingo, the capital city.
Document 2: Sint Maarten: Sint Maarten (] ) is an island country in the Caribbean. It is a constituent country of the Kingdom of the Netherlands. With a population of 33,609 on an area of 34 km2 , it encompasses the southern 40% of the divided island of Saint Martin, while the northern 60% of the island constitutes the French overseas collectivity of Saint-Martin. Sint Maarten's capital is Philipsburg.
Document 3: Ecuador–United States relations: The Republic of Ecuador and the United States of America maintained close ties based on mutual interests in maintaining democratic institutions; combating cannabis and cocaine; building trade, investment, and financial ties; cooperating in fostering Ecuador's economic development; and participating in inter-American organizations. Ties are further strengthened by the presence of an estimated 150,000-200,000 Ecuadorians living in the United States and by 24,000 U.S. citizens visiting Ecuador annually, and by approximately 15,000 U.S. citizens residing in Ecuador. The United States assists Ecuador's economic development directly through the Agency for International Development (USAID) program in Ecuador and through multilateral organizations such as the Inter-American Development Bank and the World Bank. In addition, the U.S. Peace Corps operates a sizable program in Ecuador. More than 100 U.S. companies are doing business in Ecuador.
Document 4: Pakistan Armed Forces deployments: Pakistan Armed Forces deployments include all Pakistani military deployments that are stationed outside Pakistan and serving in other countries. The sixth largest military power in terms of active troops, Pakistan has an extensive history of overseas military presence, especially in the Middle East, where it has maintained military contingents, missions and battalions in several states. As part of its foreign policy efforts to expand its military relations and influence in the region, Pakistan signed defence protocols during the 1970s with several Arab countries including Saudi Arabia, Libya, Jordan, Iraq, Oman, the United Arab Emirates and Kuwait, under which members of the armed forces of these countries were imparted professional training by Pakistani advisers and military trainers. Saudi Arabia signed a bilateral agreement with Pakistan on defense cooperation; during that time, there were 40,000 to 50,000 Pakistani military personnel serving abroad with the largest number of these, about 20,000, deployed in Saudi Arabia. By the 1980s, Pakistan maintained military missions in 22 countries, becoming the largest military manpower deployer in the Third World.
Document 5: Union of South American Nations: The Union of South American Nations (USAN; Spanish: "Unión de Naciones Suramericanas" , UNASUR; Portuguese: "União de Nações Sul-Americanas" , UNASUL; Dutch: "Unie van Zuid-Amerikaanse Naties" , UZAN; and sometimes referred to as the South American Union) is an intergovernmental regional organization comprising 12 South American countries.
Document 6: Hispaniola: Hispaniola (Spanish: "La Española"; Latin: "Hispaniola"; Taíno: "Haiti/Quisqueya") is the 22nd-largest island in the world, located in the Caribbean island group, the Greater Antilles. It is the second largest island in the Caribbean after Cuba, and the most populous island in the Caribbean; the eleventh most populous island in the world.
Document 7: The Bahamas: The Bahamas ( ), known officially as the Commonwealth of The Bahamas, is an archipelagic state within the Lucayan Archipelago. It consists of more than 700 islands, cays, and islets in the Atlantic Ocean and is located north of Cuba and Hispaniola (Haiti and the Dominican Republic); northwest of the Turks and Caicos Islands; southeast of the US state of Florida and east of the Florida Keys. The capital is Nassau on the island of New Providence. The designation of "the Bahamas" can refer either to the country or to the larger island chain that it shares with the Turks and Caicos Islands. As stated in the mandate/manifesto of the Royal Bahamas Defence Force, the Bahamas territory encompasses 180000 sqmi of ocean space.
Document 8: Inter-American Peace Force: The Inter-American Peace Force (IAPF) was established, by the Organization of American States, on 23 May 1965, after the United States's intervention in the Dominican Republic. It largely consisted of over 42,600 United States military personnel, plus the following troops were sent by each country;
Document 9: American-led intervention in Iraq (2014–present): An American-led intervention in Iraq started on 15 June 2014, when President Barack Obama ordered US forces to be dispatched to the region, in response to offensives in Iraq conducted by the Islamic State of Iraq and the Levant (ISIL). American troops went, at the invitation of the Iraqi Government, to assess Iraqi forces and the threat posed by ISIL.
Document 10: Brazil–United States Treaty: The Brazil–United States Treaty was a military assistance agreement signed in 1952 in Rio de Janeiro between the two countries, with the goal of defending the Western Hemisphere. Military relations between the United States and Brazil date back to World War II, when Brazil supported the Allied effort in the invasion of Italy in 1942. Brazil provided troops for the invasion. On January 3, 1952, The Brazilian government issued decree 30363 establishing new government regulations. These new regulations allowed for the return of foreign capital that was invested in Brazil and profit remittances on that capital. Shortly after, representatives from the United States and representatives from Brazil started to negotiate a bilateral military assistance agreement in Rio de Janeiro on January 3, 1952. The document outlining the agreement between the two countries would be signed on March 15, 1952. The agreement went into effect on May 19, 1952. During the time of the negotiations, Major General Charles L. Mullins, Jr. negotiated a separate military plan with the Brazilian Government. The plan was approved on March 14, 1952 by the Secretary of Defense Lovett. In a private ceremony on March 15, 1952 United States Major General Mullins and Brazilian General Monteiro signed the military plan that outlined a common defense between the two nations. The agreement allowed major weapons and training by the United States military to the Brazilian military. This tenuous alliance governed the two nations bilateral ties during the events of the Cold War. However, the alliance was short lived, and suffered several major blows between the two nations during the military coup in Brazil in 1964. During this time the United States still provided military support and training to the side that supported the United States.
Document 11: Caribbean Peace Force: The Caribbean Peace Force (CPF), also known as the Eastern Caribbean Peace Force (ECPF), was an OECS mandated 350-member peacekeeping force operating in Grenada, from October 1983 to June 1985, after the Invasion of Grenada, codenamed "Operation Urgent Fury", by the United States of America and several other nations in response to the illegal deposition and execution of Grenadan Prime Minister Maurice Bishop. On October 25, 1983, the United States, Barbados, Jamaica and members of the Organisation of Eastern Caribbean States landed ships on Grenada, defeated Grenadian and Cuban resistance and overthrew the military government of Hudson Austin.
Document 12: Organization of American States: The Organization of American States (Spanish: "Organización de los Estados Americanos" , Portuguese: "Organização dos Estados Americanos" , French: "Organisation des États américains" ), or the OAS or OEA, is a continental organization founded on 30 April 1948, for the purposes of regional solidarity and cooperation among its member states. Headquartered in the United States capital Washington, D.C., the OAS's members are the 35 independent states of the Americas.
Document 13: Jamaica: Jamaica ( ) is an island country situated in the Caribbean Sea, consisting of the third-largest island of the Greater Antilles. The island, 10,990 sqkm in area, lies about 145 km south of Cuba, and 191 km west of Hispaniola (the island containing the countries of Haiti and the Dominican Republic). Jamaica is the fourth-largest island country in the Caribbean, by area.
Document 14: Santo Domingo: Santo Domingo (] meaning "Saint Dominic"), officially Santo Domingo de Guzmán, is the capital and largest city in the Dominican Republic and the largest metropolitan area in the Caribbean by population. In 2010, its population was counted as 965,040, rising to 2,908,607 when its surrounding metropolitan area was included. The city is coterminous with the boundaries of the Distrito Nacional ("D.N.", "National District"), itself bordered on three sides by Santo Domingo Province.
Document 15: Saint Martin: Saint Martin (French: "Saint-Martin" ; Dutch: "Sint Maarten" ) is an island in the northeast Caribbean Sea, approximately 300 km east of Puerto Rico. The 87 sqkm island is divided roughly 60/40 between the French Republic (France) (53 km2 ) and the Kingdom of the Netherlands (34 km2 ); but the two parts are roughly equal in population, with slightly more people living on the Dutch side. It is the world's smallest inhabited island divided between two nations. The division dates to 1648. The southern Dutch part comprises Sint Maarten and is one of four constituent countries that form the Kingdom of the Netherlands. The northern French part comprises the Collectivité de Saint-Martin (Collectivity of St Martin) and is an overseas collectivity of France.
ground_truth: Haiti