Dr. Olivia Blanco no longer drives to work. The oncologist leaves her car parked at home in Havana more than two hours before her shift. She walks and tries to flag down a passing car to give her a ride.

The Cuban government, which has so far outlasted 13 U.S. presidents, faces its gravest challenge yet. Images from The New York Times and others record nearly seven decades of political turmoil, economic crises and small moments of ordinary life.

Costa Rica's president, who is closely aligned with US President Donald Trump, said that the 'hemisphere must be cleansed of communists.'