"War wins nothing, cures nothing, ends nothing . . . in war there are no winners, but all are losers." So said Neville Chamberlain on the eve of the war he had sought desperately to avoid, but which his own blunders would bring about. Chamberlain was mistaken. War ended Nazi Germany, though the cost was high: the Holocaust, the collapse of the British Empire, the Stalinization of 11 nations of Eastern Europe, 50 million dead and half a century of Cold War. As this is written, Condi Rice has arrived in the Middle East, and the two-week Israeli-Hezbollah war, an...