The United States and Cuba moved to end five decades of Cold War hostility Wednesday, agreeing to revive diplomatic ties in a breakthrough that would also ease a crippling US trade embargo. In the wake of a prisoner exchange, President Barack Obama said Washington was ready for a “new chapter” in relations with communist Cuba and would re-establish its embassy in Havana, shuttered since 1961. “We are all Americans,” Obama declared, breaking into Spanish for a speech that the White House portrayed as a bid to reassert US leadership in the Western Hemisphere.
