Question

What event caused congress to pass the war powers resolution in 1973

Answer 1

Richard Nixon sent soldiers into Cambodia allegedly to destroy command and support facilities of north Vietnamese troops during the Vietnam war. So public outcry against the invasion of a neutral country resulted and then congress passed the war powers act 

Answer 2

The War Powers Resolution is a federal law intended to check the president's power to carry out the United States to an armed conflict without the consent of the U.S. congress.