The aircraft carrier USS Dwight D. Eisenhower displays signal flags as it operates in the Arabian Sea, April 26, 2009. The USS Eisenhower Carrier Strike Group is underway on a scheduled deployment supporting Operation Enduring Freedom and the rotation of forward-deployed forces to support maritime security operations. U.S. Navy photo by Petty Officer 2nd Class Rafael Figueroa Medina

U.S. Air Force Capt. Shane Willis stops, looks and listens during Beverly Bearcat, part of an operational readiness inspection on Osan Air Base, Korea, April 22, 2009. Willis is assigned to the 25th Fighter Squadron. U.S. Air Force photo by Staff Sgt. Brian Ferguson

Pilot Ed Hamill turns his Air Force Reserve stunt plane upside down to get a better look at four F-15E Strike Eagles approaching from the rear over Seymour Johnson Air Force Base, N.C., April 26, 2009. Hamill was participating in a two-day air show on base that attracted more than 100,000 spectators. U.S. Air Force photo

U.S. Army soldiers walk onto a firing range outside Camp Buehring, Kuwait, to check the sights of their weapons to prepare for their move to Basra, Iraq, April 18, 2009. The soldiers are assigned to the 34th Red Bull Infantry Division. U.S. Army photo by Staff Sgt. Jamieson Pond

Army Gen. David H. Petraeus, commander of U.S. Central Command, speaks after receiving the Atlantic Council’s 2009 Distinguished Military Leadership Award during the council’s gala in Washington D.C., April 29, 2009. DoD photo by U.S. Air Force Master Sgt. Jerry Morrison

A U.S. Marine CH-53E Super Stallion helicopter approaches an Air Force C-130P aircraft during a helicopter air refueling mission over Grand Bara, Djibouti, April 23, 2009. The helicopter crew is assigned to the Marine Heavy Helicopter Squadron Four Six One, and the aircraft crew is assigned to the 81st Rescue Squadron. The helicopter received 13,800 pounds of fuel during the 45-minute mission. U.S. Navy photo by Petty Officer 2nd Class Jesse B. Awalt

President Barack Obama greets members of the 131st Fighter Wing, Missouri Air National Guard, before departing on Air Force One from Lambert-St. Louis International Airport in St. Louis, Mo., April 29, 2009. Obama marked his 100th day in office with a town hall meeting in Arnold, Mo. U.S. Air Force photo by Master Sgt. James McCullough

U.S. Air Force Lt. Col. Jack Maxiner hands out school supplies to Filipino children at the Sapangbato village community center as part of a community relations event in Angeles City, Philippines, April 25, 2009. Maxiner is the 63rd Fighter Squadron commander on Luke Air Force Base, Ariz. U.S. Navy photo by Petty Officer 2nd Class Robert Clowney