U.S. Air Force Airmen from Langley Air Force Base, Va., carry flags alongside U.S. Service members from other military branches of service during a patriotic flag ceremony during Yorktown Day in Yorktown, Va., Oct. 19, 2015. The modern Yorktown Day observance started in 1922, when the Daughters of the American Revolution began an annual wreath-laying ceremony, which set the tradition for the current observances. (U.S. Air Force photo by Master Sgt. April Wickes/Released)