From DefendAmerica:

U.S. Army 1st Lt. Thomas Beyerl, of Alpha Troop, 1st Squadron, 61st Cavalry Regiment, 506th Regimental Combat Team, 101st Airborne Division, gives his soldiers the order to change positions to optimize visibility during a search in the Adhamiyah area of northeast Baghdad, Iraq, Oct. 2, 2006. The soldiers are forming a defensive position to counter a possible enemy threat. U.S. Navy photo Petty Officer 2nd Class Erik A. Wehnes

U.S. Army soldiers with 1st Squadron, 61st Cavalry Regiment, 506th Regimental Combat Team, 101st Airborne Division, position their vehicles in a standard diamond pattern, which creates a safe defensive position, in order to engage insurgents in the Shaab neighborhood of northeast Baghdad, Iraq, Oct. 2, 2006. The soldiers responded to shots fired at Iraqi National Police while on patrol and remained on the scene until a platoon of Iraqi army soldiers arrived to relieve them. U.S. Navy photo by Petty Officer 1st Class Keith W. DeVinney

U.S. Army Spc. Robert D. Casturao, foreground, and Staff Sgt. Matthew Carothers, both with 1st Squadron, 61st Cavalry Regiment, 506th Regimental Combat Team, 101st Airborne Division, provide over watch security during an engagement with insurgents in the Shaab neighborhood of northeast Baghdad, Iraq, Oct. 2, 2006. U.S. Army Soldiers responded to shots fired at Iraqi National Police while on patrol and remained on the scene until a platoon of Iraqi army soldiers arrived to relieve them. U.S. Navy photo by Petty Officer 1st Class Keith W. DeVinney

U.S. Army Staff Sgt. Matthew Carothers, with 1st Squadron, 61st Cavalry Regiment, 506th Regimental Combat Team, 101st Airborne Division, provides cover from his vehicle during a patrol through the Shaab neighborhood of northeast Baghdad, Iraq, Oct. 2, 2006. U.S. Navy photo by Petty Officer 1st Class Keith W. DeVinney

An Iraqi man, who is angry about crime in his neighborhood, explains to an interpreter and U.S. Army soldiers from 1st Squadron, 61st Cavalry Regiment, 506th Regimental Combat Team, 101st Airborne Division, the details of recent criminal activity in the Shaab neighborhood of northeast Baghdad, Iraq, Oct. 2, 2006. The soldiers were on a routine patrol when they encountered locals congregating and stopped to investigate. U.S. Navy photo by Petty Officer 1st Class Keith W. DeVinney

An Iraqi man, who is angry about crime in his neighborhood, explains to an interpreter and U.S. Army soldiers from 1st Squadron, 61st Cavalry Regiment, 506th Regimental Combat Team, 101st Airborne Division, the details of recent criminal activity in the Shaab neighborhood of northeast Baghdad, Iraq, Oct. 2, 2006. The soldiers were on a routine patrol when they encountered locals congregating and stopped to investigate. U.S. Navy photo by Petty Officer 1st Class Keith W. DeVinney

U.S. Army Sgt. John T. Roper, with 1st Squadron, 61st Cavalry Regiment, 506th Regimental Combat Team, 101st Airborne Division, patrols through the streets of the Shaab neighborhood of northeast Baghdad, Iraq, Oct. 2, 2006. U.S. Navy photo by Petty Officer 1st Class Keith W. DeVinney