In his spacious marble and granite palace on Lima's Plaza de Armas, Peru's leftist soldier-President, General Juan Velasco Alvarado, last week smilingly accepted the credentials of a tall, bearded diplomat named Antonio Núñez Jiménez. The new ambassador was a Cuban, the first from his country to take up residence in Lima since Peru broke off relations in 1960. The arrival of Núñez in Peru, which struggled with Cuban-supported, revolutionaries through much of the 1960s, was another sign of the increasing acceptance that Fidel Castro's regime is finding throughout Latin America these days.
Not long ago, Cuba had diplomatic relations with...