ARMY BIRTHDAY From left, Army Col. Arthur Wittich, the oldest soldier serving in the Military District of Washington; Army Chief of Staff Gen. Ray Odierno; Defense Secretary Chuck Hagel; Secretary of the Army John M. McHugh; Sgt. Maj. of the Army Raymond F. Chandler III and Pvt. 1st Class Andrew Segla, the youngest soldier serving in the Military District of Washington; cut the Army’s birthday cake during a ceremony marking its 238th birthday at the Pentagon, June 13, 2013. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 170242-U-RCW62-493.jpg Photo Gallery