Defenders' Day Soldiers participate in a Defenders’ Day commemoration at Fort McHenry in Baltimore, Sept. 9, 2017. The event marks the successful defense of the city from British attack and the writing of the national anthem in 1814. The soldiers are assigned to the 3rd U.S. Infantry Regiment, known as "The Old Guard." Army photo by Pfc. Gabriel Silva SHARE: Download: Full Size (3.42 MB) Credit: Pvt. Gabriel Silva VIRIN: 170909-A-OA805-176C.JPG Photo Gallery