CHAIRMAN'S COIN Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, hands out commemorative coins to wounded warriors assigned to Walter Reed Army Medical Center, Washington, D.C., June 12, 2009. Mullen took questions from the service members during the all hands calls and addresses their concerns regarding their injuries, their careers and their futures. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 400540-V-SMP88-496.jpg Photo Gallery