LONDON – The much-heralded council of war between President George Bush and British Prime Minister Tony Blair begins at Bush’s Texas ranch on Friday. Whatever else is in the headlines on that day, the tight focus of the discussion will be on whether or not to go to war with Saddam Hussein’s Iraq. This must be the most complicated, multifaceted, decision that any Western political leader has made since Truman’s decision to go to war against North Korea. Yet, even if one concedes the ultimate right of any country to take preventive action against another, which might use nuclear weapons against it, the argument for a new war does not stand up. Despite America’s overwhelming military might, it could be the straw that breaks the camel’s back. Until now the U.S, by its bold and resolute, if misconceived, war in Afghanistan has proved the doubters wrong on one important point. The...