Marines take a break during swim practice for the 2012 Warrior Games at Colorado Springs, Colo., April 25, 2012. The Warrior Games is a competition between wounded warriors from all military branches and includes swimming, track and field, cycling, shooting, archery, sitting volleyball and wheelchair basketball. The competition will run May 1-5, 2012. U.S. Marine Corps photo by Sgt. Aaron Hostutler

First Lady Michelle Obama and Army Gen. Martin E. Dempsey, chairman, Joint Chiefs of Staff, applaud as members of the Marine team make their way down the Olympic pathway during the opening ceremony of the 2012 Warrior Games in Colorado Springs, Colo., April 30, 2012. U.S. Marine Corps photo by Staff Sgt. Heidi Agostini

First Lady Michelle Obama, right, watches as retired Army veteran Melissa Stockwell, center, and British Royal Marine Capt. Simon Maxwell, left, serve as the honorary torchbearers who lit the cauldron to kick off the 2012 Warrior Games in Colorado Springs, Colo., April 30, 2012. Maxwell is from Croydon, England. U.S. Marine Corps photo by Staff Sgt. Heidi Agostini

U.S. Defense Secretary Leon E. Panetta, center right, and U.S. Secretary of State Hillary Rodham Clinton, center left, meet with Filipino Foreign Affairs Secretary Albert del Rosario and Filipino Defense Secretary Voltaire Gazmin at the State Department in Washington, D.C., April 30, 2012. DOD photo by Glenn Fawcett

U.S. Defense Leon E. Panetta, right, and U.S. Secretary of State Hillary Rodham Clinton meet with Filipino Foreign Affairs Secretary Albert del Rosario and Filipino Defense Secretary Voltaire Gazmin at the State Department in Washington, D.C., April 30, 2012. DOD photo by Glenn Fawcett

U.S. Defense Secretary Leon E. Panetta, far right, speaks during a press conference with U.S. Secretary of State Hillary Rodham Clinton, Filipino Defense Secretary Voltaire Gazmin, far left, and Filipino Foreign Affairs Secretary Albert del Rosario after meeting at the State Department in Washington, D.C., April 30, 2012. DOD photo by Glenn Fawcett

President Barack Obama and Japanese Prime Minister Yoshihiko Noda brief the press at the White House in Washington, D.C., April 30, 2012. During the briefing, Obama referred to Japan as “one of America's closest allies in the Asia-Pacific region” and around the world. White House photo by Pete Souza

U.S. Marine Corps Capt. Ian J. Duncan greets an Afghan elder during the opening of the Green School in the Marjah district of Afghanistan’s Helmand province, April 25, 2012. Duncan is assigned to Civil Affairs Detachment, Regimental Combat Team 5. The school was officially opened with a ribbon-cutting ceremony hosted by the district governor. U.S. Marine Corps photo by Sgt. Michael Snody