Adm. Mike Mullen speaks with the family of U.S. Army Sgt. 1st Class William Frass. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen, U.S. Navy, speaks with the family of U.S. Army Sgt. 1st Class William Frass at the premiere of the HBO documentary "Wartorn 1861-2010" in the Pentagon on Oct. 28, 2010. Frass completed three tours of duty in Iraq as the leader of a reconnaissance unit and still struggles with stress related issues over two years later. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 518173-H-EWU05-169.jpg Photo Gallery