U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, arrives on Forward Operating Base Jackson, Afghanistan, April 19, 2011. Mullen is visiting the Central Command area of operation to support a USO tour to the region and visit counterparts and service members in the area. U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, arrives on Forward Operating Base Jackson, Afghanistan, April 19, 2011. Mullen is visiting the Central Command area of operation to support a USO tour to the region and visit counterparts and service members in the area. SHARE IMAGE: Download Image: Full Size (3.14 MB) Tags: Photo Essays Photo By: VIRIN: 491396-V-OYG61-861.jpg Photo Gallery