I'm not quite sure why, but there seems to remain some lack of comprehension regarding the laws about going to war. Thus I supply again this information: The Law Under USA law, is the president allowed to take the nation to war? No. The US Constitution allows only for the Congress to make war. There is of course the USA's War Powers Act, which further defines who can do what in times of war. However, the War Powers Act also states: What about internaional law? One law of particular interest which the USA signed on for is the United Nations Charter, which states: There is of course Chapter 7, but that is irrelevent since the SC did not make any such decision. Lawyers Against The War An interesting website: http://www.lawyersagainstthewar.org/ Obviously these people have a stated bias, but the law is written in black and white.