Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, speaks with U.S. Army Gen. John W. Vessey, 10th chairman of the Joint Chiefs of Staff, at the Pre-Alfalfa Club Luncheon at the Willard Hotel in Washington, D.C., Jan. 29, 2010. The event, hosted by the Center for International and Strategic Studies, is a pre-event to the annual Alfalfa Club dinner honoring the birthday of Confederate Gen. Robert E. Lee. DoD photo by Navy Petty Officer 1st Class Chad J. McNeeley

From left to right, Navy Adm. Gary Roughead, chief of naval operations; Former Sen. John Warner, R-Va.; Evan Thomas, editor-at-large, Newsweek Magazine; Adm. Mike Mullen, chairman of the Joint Chiefs of Staff; and Vice Adm. Ann Rondeau, president of the National Defense University; participate in a discussion about Adm. Arleigh Burke and his lessons on leadership at the Center for International and Strategic Studies, Washington, D.C., Jan. 29, 2010. DoD photo by Petty Officer 1st Class Chad J. McNeeley

Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, participates in a discussion about Adm. Arleigh Burke, the former three-term chief of Naval Operations, and his lessons on leadership at the Center for International and Strategic Studies in Washington, D.C., Jan. 29, 2010. Former Sen. John Warner R-Va., left, and Evan Thomas, editor-at-large, Newsweek Magazine, also took part in the panel discussion. DoD photo by U.S. Navy Petty Officer 1st Class Chad J. McNeeley

U.S. President Barack Obama greets the crowd during his visit to MacDill Air Force Base, Fla., Jan. 28, 2010. Obama and Vice President Joe Biden landed at MacDill in Tampa, Fla., to conduct a townhall-style meeting at the University of Tampa. U.S. Air Force photo by Staff Sgt. Joseph L. Swafford

U.S. Vice President Joe Biden talks with Air Force Col. David Cohen, 6th Air Mobility Wing vice commander, and Chief Master Sgt. Derrick Crowley, 6th Air Mobility Wing command chief, during the vice president's visit to MacDill Air Force Base, Fla., Jan. 28, 2010. Biden accompanied President Barack Obama to MacDill to conduct a townhall-style meeting at the University of Tampa. U.S. Air Force photo by Staff Sgt. Joseph L. Swafford

U.S. Army soldiers hold a memorial service on Camp Shelby, Hattiesburg, Miss., Jan. 28, 2010, to honor 14 fallen comrades who gave their lives while serving in Iraq in 2004 and 2005. The ceremony included the unveiling of a granite monument to the fallen heroes of the 278th Armored Cavalry Regiment, Tennessee Army National Guard. U.S.Army Staff Sgt. Russell Lee Klika

U.S. Air Force airmen secure cargo and equipment aboard a C-17 Globemaster III bound for Haiti to provide earthquake relief from Moody Air Force Base, Ga., Jan. 28, 2010. The airmen are assigned to the 23rd Logistics Readiness Squadron on the base. U.S. Air Force photo by Tech. Sgt. William Greer

U.S. Army Sgt. Jerry Benson mans a .50-caliber machine gun while patrolling along Highway 4 in Spin Boldak, Afghanistan, Jan. 25, 2010. Benson is assigned to the 8th Squadron, 1st Cavalry Regiment. U.S. Air Force photo by Tech. Sgt. Francisco V. Govea II