It has been a year since the US and Cuba restored full diplomatic ties after more than five decades of frosty relations rooted in the Cold War.

The US broke off ties with Cuban following the 1959 Communist revolution led by former Cuban President Fidel Castro.

Successive US governments tried to oust the Cuban leadership, most notably during the CIA-backed Bay of Pigs invasion of 1961.

The US imposed a trade embargo on Havana in 1962 and in the same year the movement of nuclear missiles from the Soviet Union to Cuba brought the countries close to nuclear war.

Since the restoration of diplomatic relations, the states have signed telecommunication deals and put into place airline services but obstacles remain.

On March 20, 2016, US President Barack Obama was welcomed by cheering crowds in Havana at the start of a historic visit to Cuba that opened a new chapter in US engagement with the island's government.