This will be a topic of discussion all week IMHO. So here is what we the people declared in 1973.
The War Powers Act of 1973 (Public Law 93-148) limits the power of the President of the United States to wage war without the approval of Congress.
The purpose of the War Powers Resolution is to ensure that Congress and the President share in making decisions that may get the U.S. involved in hostilities. Portions of the War Powers Resolution require the President to consult with Congress prior to the start of any hostilities as well as regularly until U.S. armed forces are no longer engaged in hostilities ; and to remove U.S. armed forces from hostilities if Congress has not declared war or passed a resolution authorizing the use of force within 60 days. Following an official request by the President to Congress, the time limit can be extended by an additional 30 days (presumably when "unavoidable military necessity" requires additional action for a safe withdrawal).