U.S. Defense Secretary Robert M. Gates, left, shakes hands with Ma Xiaotian, right, China's deputy chief of general staff, People's Liberation Army, during their meeting on the sidelines of the International Institute for Strategic Studies Asia Security Summit, Singapore, May 30, 2009.
DoD photo by U.S. Air Force Master Sgt. Jerry Morrison
U.S. Army Sgt. Randy Powell checks his sector during Operation Asfah Ramlyah, a combined clearance operation in the city of Sumer Al-Ghadier located in the 9 Nissan district of eastern Baghdad, May 28, 2009. Powell is assigned to the 82nd Airborne Division's Headquarters and Headquarters Company, 2nd Battalion, 505th Parachute Infantry Regiment, 3rd Brigade Combat Team, Multinational Division Baghdad, which conducted the operation with Iraq's 2nd National Police Division's 8th Brigade.
U.S. Army photo by Sgt. 1st Class Alex Licea
U.S. Marines participate in a practice raid on Flushing Meadows Park with a CH-46 helicopter to demonstrate for civilians the tactics the U.S. Marine Corps uses while raiding an area in enemy territory, May 25, 2009. The Marines are assigned to the 6th Marine Regiment's 2nd Battalion. The demonstration was part of Fleet Week 2009.
U.S. Marine Corps photo by Lance Cpl. Carl Payne
Vice President Joe Biden enters the U.S. Air Force Academy's Falcon Stadium to deliver the commencement address during the Academy Class of 2009 graduation ceremony in Colorado Springs, Colo., May 27, 2009.
U.S. Air Force photo by Mike Kaplan
U.S. Marines perform during Marine Day in Times Square, New York, May 23, 2009. The Marines are assigned to the Marine Corps Forces Reserve Band.
U.S. Marine Corps photo by Sgt. Steve Cushman
U.S. Army Spc. Daniel Worthington high-crawls through the dirt during the obstacle course portion of the Pre-Ranger Course in the Mojave Desert, Fort Irwin, Calif., May 18, 2009. The purpose of the 14-day course is to prepare soldiers to succeed in the US Army Ranger School.
U.S. Army courtesy photo
U.S. Navy sailors assigned to the USS Lake Champlain's visit, board, search and seizure team transport Somali migrant children to their guided-missile cruiser after rescuing them from a disabled skiff in the Gulf of Aden, May 24, 2009. The skiff, originally ferrying 52 passengers, was spotted in distress by the USS Lake Champlain helicopter pilots patrolling the area. The USS Lake Champlain is deployed as part of the USS Boxer Expeditionary Strike Group supporting maritime security operations in the U.S. 5th Fleet area of responsibility.
U.S. Navy photo by Petty Officer 2nd Class Daniel Barker
U.S. Navy Seaman Josh Sallee, left, and Seaman Mark Matthews, emplace a flag by a grave marker, participate with fellow U.S. Navy Ceremonial Guard members in the annual "Flags In" tribute at Arlington National Cemetery, Va., May 21, 2009.
DoD photo by Donna Miles