[BBC] Former Cuban President Raul Castro has accused the US of returning to its policy of confrontation.Mr Castro, who is still head of Cuba's ruling Communist Party, was speaking on the 60th anniversary of the revolution led by his brother, Fidel.
He urged Cubans to prepare for all scenarios to defend their independence and said the revolution "had not aged".
The Castro brothers, first Fidel and then Raul, ruled the country between 1959 and 2018.
Raul Castro handed over the Cuban presidency to Miguel Diaz-Canel early last year.
Relations between Cuba and the US thawed under the Obama administration but President Donald Trump has taken a harder line.
In 2017, Mr Trump reimposed certain travel and trade restrictions eased by the previous US government.