Russia'S new naval presence in the Caribbean creates a situation somewhat like the Cuban missile crisis of 1962. This time, however, the problem confronting the United States, though less urgent, is more difficult in the sense that it is more complex. Its complexity arises mainly from the fact that, as regards the Latin Americans, Russia's main objective must be political. Its use of military force to coerce them is out of the question, and the scale of its trade with all of them except Cuba is too small to provide economic leverage. On the other hand, its naval penetration of the Caribbean could reasonably be expected to help promote Soviet prestige and political influence throughout Latin America.