Defense Secretary Robert M. Gates presents the U.S Central Command flag to Army Gen. David H. Petraeus, who is assuming command of CENTCOM from Army Lt. Gen. Martin E. Dempsey at a ceremony on MacDill Air Force Base, Fla., Oct. 31, 2008. U.S. Air Force Photo by Air Force Staff Sgt Joseph L. Swafford Jr.

U.S. Army Gen. David H. Petraeus, right, and U.S. Navy Admiral Mike Mullen, chairman of the Joint Chiefs of Staff, salute the colors during the playing of the national anthem at the U.S. Central Command Change of Command ceremony on MacDill Air Force Base, Fla., Oct. 31, 2008. Petraeus assumed command of CENTCOM from U.S. Army Lt. Gen. Martin E. Dempsey. U.S. Air Force Photo by Air Force Staff Sgt Joseph L. Swafford Jr.

Paratroopers from Headquarters, 2nd Brigade Special Troops Battalion, 82nd Airborne Division, gather around for their weekly safety brief prior to their morning run at Fort Bragg, N.C. In the spirit of Halloween, several of the "Green Falcon" paratroopers dressed up for the Oct. 31, 2008, morning run. U.S. Army photo by Sgt. Susan Wilt

U.S. Navy Chief Master-at-Arms James Bruno and Master-at-Arms 2nd Class Jorge Barajas conduct training with military working dog Ico during controlled aggression training at Naval Base San Diego, Calif., Oct. 29, 2008. U.S. Navy photo by Petty Officer 3rd Class Damien Horvath

U.S. Army 1st Lt. Rosita Rodriguez and Worda, age 6, a neighborhood little girl try out a new swing at the grand opening of Dover Park in the Qahira neighborhood in the Adhamiyah District of Baghdad, Iraq, Oct. 28, 2008. Rodriguez is a civil affairs team chief, Company C, 404th Civil Affairs Battalion, attached to 3rd Brigade Combat Team, 4th Infantry Division, Multi-National Division-Baghdad. The park, refurbished by a Multi-National Division-Baghdad contract and is the first public park in the U.S. Army photo by Sgt. Jerry Saslav

U.S. Army Spc. Michael McMiller provides security prior to linking up with an Iraqi army unit at the Saddam Mosque to conduct a joint operation patrol in Al Zarai, Iraq, Oct. 30, 2008. The soldiers are assigned to the 3rd Armored Cavalry Regiment's 3rd Squadron. U.S. Air Force Staff Sgt. JoAnn S. Makinano

U.S. Navy Seaman Jeremy Donaldso moves supplies in the hangar bay of the aircraft carrier USS John C. Stennis during a replenishment at sea in the Pacific Ocean, Oct. 28, 2008. U.S. Navy photo by Petty Officer 3rd Class Josue L. Escobosa

An F/A-18 Hornet assigned to the "Valions" of Strike Fighter Squadron 15 launches from the aircraft carrier USS Theodore Roosevelt under way in the Gulf of Oman, Oct. 25, 2008. . U.S. Navy photo by Petty Officer 2nd Class Remus Borisov