COMMANDER FAREWELL U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, bids farewell to John F. Campbell, commander, Combined Joint Task Force-101, on Bagram Airfield, Afghanistan, July 26, 2010. Mullen is visiting Afghanistan during a 10-day trip around the world to meet with counterparts and troops engaged in the war on terrorism. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 021635-K-BBO73-008.jpg Photo Gallery