Croatia's prime minister gave a firm show of support Feb. 8 to the U.S. policy of preemption. During a joint press conference with U.S. Defense Secretary Donald H. Rumsfeld, who made a brief stop in the Croatian capital of Zagreb, Prime Minister Ivo Sanader voiced his agreement with "preventive action." Sanader said the war among former Yugoslav nations in the early 1990s could have been prevented if the international community had had "the will to undertake preventive actions to preempt (Serbian President Slobodan) Milosevic's aggression and aggressive policies." Tens of thousands of lives and tens of billions of dollars in...