Chase Tillett, 20, from St. Paul, Minn., knocks out 20 pull-ups for basketball fans while taking the Marine Corps challenge at the Target Center where the Minnesota Timberwolves took on the Denver Nuggets Dec. 29. Tillett, who graduated from Tartan High School, ships off to boot camp Feb. 7. He is currently serving in the Delayed Entry Program as the Recruiting Substation Roseville guide. U.S. Marine Corps photo by Staff Sgt. Clinton Firstbrook

U.S. Air Force Chief Master Sgt. Don Kuehl says farewell to Shah Mahmood, the Sarkani District subgovernor, following a meeting at the Sarkani District Center, Kunar province, Afghanistan, Dec. 27, 2010. Kuehl is assigned to the 734th Agribusiness Development Team. U.S. Air Force photo by Capt. Peter Shinn

U.S. Air Force Capt. Kate DenDekker gives instructions to two Iraqi Army Aviation Command pilots during a pre-flight mission brief Dec. 12, 2010, in Taji, Iraq. DenDekker is a combat air adviser with the 721st Air Expeditionary Advisory Squadron. Air advisers from the 721st AEAS instruct and advise AAC pilots to help build a safe, self-sustaining Iraqi rotary-wing force. U.S. Air Force photo by Senior Airman Andrew Lee

U.S. Navy sailors perform maintenance on the catapults aboard the aircraft carrier USS George Washington, off the coast of Yokosuka, Japan, Dec. 29, 2010. Since pulling out of port May 18, 2010, George Washington has traveled 51,700 nautical miles and safely launched and recovered 8,351 aircraft. The George Washington is the Navy's only permanently forward-deployed aircraft carrier, ensuring security and stability across the western Pacific Ocean. U.S. Navy photo by Seaman Cheng S. Yang

U.S. Marine Corps Cpl. Patrick Kelley speaks with an Afghan boy while providing security during an inspection of a new school being built in Ghartallah, Musa Qal’eh district, Afghanistan, Dec. 24, 2010. Kelley, a civil affairs noncommissioned officer is assigned to the 1st Battalion, 8th Marines. U.S. Marine Corps photo by Lance Cpl. Joshua J. Hines

U.S. Army Spc. Paul M. Cattorn provides security for Afghan National Security Forces on day two of a six-day dismounted operation in Logar province, Afghanistan, Dec. 20, 2010. Cattorn is assigned to the 10th Mountain Division's Company C, 2nd Battalion, 30th Infantry Regiment, 4th Brigade Combat Team, Task Force Storm. U.S. Army photo by Sgt. Cooper T. Cash

U.S. Army Pfc. Samuel Ford walks next to his vehicle in order to clear and document culverts along a highway in the Wardak province, Afghanistan, Dec. 21, 2010. Ford is assigned to the 10th Mountain Division's Company B, 2nd Battalion, 4th Infantry Regiment, 4th Brigade Combat Team. U.S. Army photo by Sgt. Sean Patrick Casey

U.S. Army Spc. Mark E. Fielding provides security for Afghan National Security Forces on day five of a six-day dismounted operation in Logar province, Afghanistan, Dec. 23, 2010. Fielding is assigned to the 10th Mountain Division's Company C, 2nd Battalion, 30th Infantry Regiment, 4th Brigade Combat Team, Task Force Storm. U.S. Army photo by Sgt. Cooper T. Cash