U.S. Air Force Staff Sgt. Brian Gaylor prepares to marshal an F-16 aircraft at Shaw Air Force Base, S.C., June 29, 2006, during exercise Operation Dynamic Weasel. The exercise, which consists of aircraft multiple bases, is designed to sharpen tactics, techniques and procedural skills while practicing for combat situations. Gaylor is assigned to the 77th Fighter Squadron. U.S. Air Force photo by Airman Matthew Davis

U.S. Army soldiers from 3rd Battalion, 187th Infantry Regiment, 101st Airborne Division (Air Assault) and Iraqi army soldiers from 2nd Battalion, 1st Brigade, 4th Iraqi Army Division conduct an operation in Samaria, Iraq, June 23, 2006. .S. Navy photo by Petty Officer 3rd Class Shawn Hussong

Sailors manning the rails render honors as the Nimitz-class aircraft carrier USS Ronald Reagan passes the USS Arizona Memorial in Pearl Harbor, Hawaii, June 28, 2006. The Reagan and embarked Carrier Air Wing 14 are on a regularly scheduled deployment in support of the global war on terrorism. U.S. Navy photo by Petty Officer 2nd Class Aaron Burden

President George W. Bush talks with U.S. Army Sgt. 1st Class Kenneth Williams, as he meets with military personnel June 28, 2006, at the VFW Overland-St. Ann Memorial Post #3944 in St. Louis, Mo.The troops recently returned from Iraq and Afghanistan. White House photo by Kimberlee Hewitt

Australian Minister of Defense Brendan Nelson and U.S. Defense Secretary Donald H. Rumsfeld answer questions from the media during a press conference in the Pentagon, June 28, 2006. Defense Dept. photo by Staff Sgt. Gary Hilliard

Defense Secretary Donald H. Rumsfeld answers a question from the media after congressional testimony, May 3, 2006, as Sen. John Warner looks on. Rumsfeld and Secretary of State Condoleezza Rice met with House and Senate members to report on their recent trip to Iraq. Defense Dept. photo by U.S. Navy Petty Officer 1st Class Chad J. McNeeley

U.S. Army Pfc. Elizabeth Patrick and an Iraqi police officer review a target following a live-fire exercise on Forward Operating Base Kalsu, Iraq, May 2, 2006. U.S. Army soldiers, from 988th Military Police Company, are conducting a two-week basic military training course. U.S. Navy photo by Petty Officer 2nd Class Katrina Beeler

Children in Kamaliya, Iraq, walk off with a humanitarian assistance bag given to them by U.S. Army soldiers April 28, 2006. Soldiers from Delta Company, 3rd Battalion, 67th Armored Regiment, 4th Brigade, 101st Airborne Division, distributed donated supplies to the villagers. U.S. Navy photo by Petty Officer 1st Class Bart A. Bauer