Members of the Headquarters Salute Battery of the United States, Fort Eustis, Va., fire off a volley from their cannons to mark the beginning of the Annual Yorktown Day festivities in Yorktown, Va., Oct. 19, 2012. Festivities included a parade, patriotic ceremony and a demonstration by the 3rd Infantry Regiment – Commander-in-Chief’s Guard, from Fort Myer, Va. (U.S. Air Force photo by Staff. Sgt. Wesley Farnsworth / Released)