It left a bitter legacy, with hundreds of thousands of people killed, wounded, and displaced in the wars that followed. As we’ve long advocated, it’s essential that Congress close the chapter on this era of endless wars, beginning with finally repealing the post-9/11 war authorizations (AUMFs). The Senate needs to show the same leadership that the House has in working for an end to war. The tragedy of 9/11 must not become the excuse for more violence. By ending the legal authority for the use of military force, Congress can promote peace and save lives.