<Tr> <Th> Chargé d'affaires ad interim </Th> <Td> Ambassador Scott Hamilton (since 2017) </Td> </Tr> <Tr> <Td_colspan="2"> Location of Embassy of the United States, Havana in Cuba </Td> </Tr> <P> The Embassy of the United States of America in Havana is the United States of America's diplomatic mission in Cuba . On January 3, 1961, US President Dwight D. Eisenhower severed relations following the Cuban Revolution of the 1950s . In 1977, President Jimmy Carter and President Fidel Castro signed an Interests Sections Agreement that permitted each government to operate out of its former embassy in Havana and Washington D.C., which were called Interests Sections; they were prohibited from flying their respective flags . Cuban President Raúl Castro and US President Barack Obama restored full diplomatic connections on July 20, 2015 . </P> <P> The building housed the United States Interests Section in Havana between 1977 and 2015, which operated under the auspices of the Swiss Embassy (acting as protecting power). On July 1, 2015 it was announced that with the resumption of diplomatic ties, the building resumed its role as the U.S. Embassy in Cuba on July 20, 2015 . The embassy is led by Chargé d'affaires ad interim Ambassador Scott Hamilton . </P>

When did the us reopen its diplomatic mission in cuba