Irish Brigade Union Army Gen. Robert Nugent and staff near Washington, D.C. Nugent helped form the Irish Brigade and was its last surviving officer in the waning days of the war. He led his men in a parade through Washington, D.C., after the Confederates surrendered. SHARE IMAGE: Download Image: Full Size (0.13 MB) Tags: Irish Brigade Photo By: Library of Congress VIRIN: 200302-O-ZZ999-287.JPG Photo Gallery