In his Financial Times column today, Gideon Rachman makes the argument for a "United Nations army." His test case, interestingly, is Somalia, where offshore piracy has galvanized international cooperation, but 18 years of onshore violence and instability has rumbled on unchecked. Would it be easier, or any more advisable, to send UN peackeepers to Somalia if there were, as Rachman proposes, "a proper UN force on permanent stand-by?"