Sgt. Thomas James Brennan (2nd L) of Randolph, Massachusetts from the 1st Battalion 8th Marines Alpha Company shouts to his comrades to keep out of the line of fire from Taliban insurgents during a firefight in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.



U.S. Marines from the 1st Battalion 8th Marines Alpha Company prepare to move down an alley taking heavy fire and to storm a compound for cover during a battle against Taliban insurgents in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.



Sgt. Thomas James Brennan of Randolph, Massachusetts, from the 1st Battalion 8th Marines Alpha Company runs under fire after a rocket propelled grenade exploded near his position during a battle against Taliban insurgents in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.



Spent cartridges spring from the weapon of Sgt. Thomas James Brennan of Randolph, Massachusetts, from the 1st Battalion 8th Marines Alpha Company as he fires at Taliban insurgents in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.



Cpl. Shaun Clarkson of New Jersey, from the 1st Battalion 8th Marines Alpha Company ducks from incoming fire from Taliban insurgents while reaching for more ammunition during a gun battle in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.



A U.S. Marine from the 1st Battalion 8th Marines Alpha Company holds a position in a compound during a gun battle in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.



SSgt. Ysidro Gonzalez of Alice, Texas, (L) from the 1st Battalion 8th Marines Alpha Company checks on LCpl. John Chun of New Jersey who suffered a concussion from a nearby rocket propelled grenade explosion during a battle against Taliban insurgents in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.



SSgt. Ysidro Gonzalez of Alice, Texas, from the 1st Battalion 8th Marines Alpha Company calls for a medic after Sgt. Thomas James Brennan of Randolph, Massachusetts suffered a concussion caused by a rocket propelled grenade explosion near his position during a battle against Taliban insurgents in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.



Cpl. Shaun Clarkson of New Jersey, from the 1st Battalion 8th Marines Alpha Company runs along a wall while under fire from Taliban insurgents during a gun battle in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.



LCpl. John Chun of New Jersey, from the 1st Battalion 8th Marines Alpha Company shoots a grenade while under fire from Taliban insurgents during a gun battle in the town of Nabuk in southern Afghanistan's Helmand province, November 1, 2010.