VIDEO: Millions of red, yellow and black land crabs make their annual trip to Cuba's Bay of Pigs to breed in the sea.
From their cooperation during World War II to the Cuban Missile Crisis, the United States and Russia have a complicated relationship.
PHOTO: Protesters sitting in Whitehall during a demonstration over the Cuban Missile Crisis.
VIDEO: Oct. 11, 2002: Forty years after the Cuban Missile Crisis, Walters asks Castro to describe his communications with the Soviet Union's Khrushchev leading up to the crisis.
That year Kennedy faced one of the greatest challenges of his presidency, the Cuban Missile Crisis, a volatile, close-to-the-brink 13-day standoff in which the world teetered on the edge of thermonuclear war.
VIDEO: Pressures and fears from Cuban Missile Crisis bonds the Kennedys more than ever.
PHOTO: Cuba kicked off a crucial Communist Party congress with a parade to mark 50 years since the defeat of CIA-backed exiles at the Bay of Pigs.
PHOTO: Rafael Soldevilla,74, a 'Bay of Pigs' veteran combatant, poses for a photograph in his home in Havana, Cuba, March 19, 2011.