Lt. Gen. William B. Caldwell takes Sen. Lisa Murkowski on a tour of a Kabul training facility, Jan. 9, 2010. The general has been accused of using psychological profiles to influence American visitors to Afghanistan.
US Navy/Francis J. Carroll
October 2009 file photo: U.S. Army Specialist Damyon Miller from the 3rd Platoon, Charlie Company, 1st Infantry Regiment, 5th Stryker Brigade Combat Team, 2nd Infantry Division, mans a machine gun mounted at the back of a Stryker vehicle as the large armored convoy patrols near the Afghanistan and Pakistan border.
Romeo Gacad /AFP/Getty Images
Pakistani soldiers carry coffins of their colleagues during a funeral ceremony in Peshawar on Oct. 22, 2010, following a bomb explosion in the Yakh Kandaw area of Orakzai, one of the districts where Taliban militants have fled after punishing offensives elsewhere in the northwest.
L-R: Defense Secretary Robert Gates, Vice President Biden, President Obama, Secretary of State Hillary Rodham Clinton, and Joint Chiefs Vice Chairman Gen. James Cartwright, during today's briefing.
Pablo Martinez Monsivais/AP
Afghan brothers Barangai (R), 6, and Shaista Khan, 4, pose for a portrait just outside a U.S. Marines combat outpost in Marjah, Helmand province, southern Afghanistan, on April 11, 2010.
Maurico Lima/AFP/Getty Images
Richard Holbrooke, who died at 69, began his diplomatic work as a young Foreign Service officer in Vietnam in 1962 and ended it serving as the President's Special Representative to Afghanistan and Pakistan.
Haraz N. Ghanbari/AP