If one thinks seriously about any of the major international trouble spots in the world today, one soon confronts the problem of what really is the “value” of, for example, Cuba, Berlin, or Laos to the United States. The view put forward in this article is that, while the question is unanswerable in a rigorous and precise sense, some useful things can be said in approaching it, and in trying to distinguish between more and less unsatisfactory answers to it. In principle, of course, the value of other countries to the United States includes that of the advanced countries, and, most significantly, of Western Europe. The present article, however, will be primarily concerned with the value of less-developed countries to the United States, and with their value in certain extreme contingencies over a time period that is relatively short from the standpoint of history, though somewhat longer from the standpoint of economics.