U.S. Navy personnel work on the bridge of the USS Iwo Jima as the amphibious assault ship enters New York Harbor for Fleet Week May 26, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: MILITARY SOCIETY)

NEW YORK - JUNE 12: Manager Joe Girardi #28 of the New York Yankees poses for a photo with the US Army Golden Knights during military appreciation day prior to their game gainst the Houston Astros on June 12, 2010 at Yankee Stadium in the Bronx borough of New York City. (Photo by Mike Stobe/Getty Images)

KANDAHAR, AFGHANISTAN - JUNE 25: U.S. Army Captain Brandi Faudree from Charlie Co. Sixth Battalion, 101st Airborne Combat Aviation Brigade, Task Force Shadow monitors a patient while enroute to the hospital in a MEDEVAC helicopter June 25, 2010 in Kandahar, Afghanistan. As combat operations begin to escalate near Kandahar, the 101st Airborne MEDEVAC unit transports casualties of war as well as sick and injured local residents. (Photo by Justin Sullivan/Getty Images)

NEW YORK - JUNE 12: US Army Golden Knights look on during military appreciation day prior to the game between the Houston Astros and the New York Yankees on June 12, 2010 at Yankee Stadium in the Bronx borough of New York City. (Photo by Mike Stobe/Getty Images)

KANDAHAR, AFGHANISTAN - JUNE 26: U.S. Army Captain Robin Fine from Charlie Co. Sixth Battalion, 101st Airborne Combat Aviation Brigade, Task Force Shadow runs towards her MEDEVAC helicopter for an emergency call on June 26, 2010 in Kandahar, Afghanistan. As combat operations begin to escalate near Kandahar, the 101st Airborne MEDEVAC unit transports casualties of war as well as sick and injured local residents. (Photo by Justin Sullivan/Getty Images)

KANDAHAR, AFGHANISTAN - JULY 04: U.S. Army Specialist Sydnee Scott wears a patriotic lei during an Independence Day BBQ for troops at Kandahar Airfield July 4, 2010 in Kandahar, Afghanistan. Troops stationed at Kandahar Airfield were treated to a BBQ dinner and entertainment to celebrate Independence Day. Gen. David Petraeus formally assumed command of the 130,000-strong international force in Afghanistan today replacing Gen. Stanley McChrystal. (Photo by Justin Sullivan/Getty Images)

KANDAHAR, AFGHANISTAN - JUNE 27: U.S. Army Captain Brandi Faudree from Charlie Co. Sixth Battalion, 101st Airborne Combat Aviation Brigade, Task Force Shadow examines a wounded Afghan National Army soldier as he is flown to the hospital in a MEDEVAC helicopter on June 27, 2010 in Kandahar, Afghanistan. As combat operations begin to escalate near Kandahar, the 101st Airborne MEDEVAC unit transports casualties of war as well as sick and injured local residents. (Photo by Justin Sullivan/Getty Images)