Senior leaders in the reviewing stand render a salute as the Langley Honor Guard marches past during the Yorktown Day parade at Colonial National Historic Park in Yorktown, Virginia, Oct. 19, 2018. The U.S. Air Force, U.S. Army, U.S. Marine Corps and U.S. Navy were represented with an honor guard. (U.S. Air Force photo by Senior Airman Derek Seifert)