THE TENSION: Combat Camera: US Troops Search for Enemy Bunkers in Balad Ruz, Iraq

U.S. Army soldiers prepare to load a UH-60 Black Hawk helicopter for transportation to an area south of Balad Ruz, Iraq, March 22, 2009. The soldiers are assigned to the 25th Infantry Division's 1st Battalion, 24th Infantry Regiment, 1st Stryker Brigade Combat Team. (U.S. Navy photo by Petty Officer 2nd Class Walter J. Pels.)

U.S. Army soldiers set a security perimeter while searching for and destroying enemy bunkers south of Balad Ruz, Iraq, March 22, 2009. (U.S. Navy photo by Petty Officer 2nd Class Walter J. Pels.)

Right to left, U.S. Army Sgt. Jay Sims, Capt. Joseph Hansen, Spc. Cayce Watson and Sgt. 1st Class Michael Barrera take a tactical pause during an operation south of Balad Ruz, Iraq, March 22, 2009. (U.S. Navy photo by Petty Officer 2nd Class Walter J. Pels.)

U.S. Army Sgt. Cory Carnes, left, leads a patrol searching for enemy bunkers south of Balad Ruz, Iraq, March 22, 2009. (U.S. Navy photo by Petty Officer 2nd Class Walter J. Pels.)

U.S. Army Spc. Christopher Fry searches for enemy bunkers south of Balad Ruz, Iraq, March 22, 2009. (U.S. Navy photo by Petty Officer 2nd Class Walter J. Pels.)

U.S. Army Sgt. Shane Fackrell gets a hand climbing up a canal embankment south of Balad Ruz, Iraq, March 22, 2009. (U.S. Navy photo by Petty Officer 2nd Class Walter J. Pels.)

U.S. Navy Petty Officer 2nd Class Jared Naegele prepares an explosive charge to destroy an enemy bunker found next to a canal south of Balad Ruz, Iraq, March 22, 2009. (U.S. Navy photo by Petty Officer 2nd Class Walter J. Pels.)

U.S. Army soldiers wait to be picked up by UH-60 Black Hawk helicopters south of Balad Ruz, Iraq, March 22, 2009. (U.S. Navy photo by Petty Officer 2nd Class Walter J. Pels.)