Adm. Mike Mullen addresses service members during an all hands call at Al-Faw Palace, Baghdad. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen addresses service members during an all hands call at Al-Faw Palace, Baghdad, Iraq, on Aug. 2, 2011. Mullen is on a five-day USO tour with comedian Jon Stewart, NBA legend Karl Malone and magician David Blane visiting troops in Afghanistan and Iraq. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 761546-R-ENR28-850.jpg Photo Gallery