The casualty had been struck by a bullet and was lying defenceless on the ground when Knoska charged into hostile fire .
Sergeant First Class Steffen Knoska rescued a seriously wounded comrade from incoming fire during an ambush in Afghanistan 's Kunduz Province on June 7 , 2009 .
The casualty had been struck by a bullet and was lying defenceless on the ground when Sergeant First Class Steffen Knoska charged into hostile fire .
Sergeant First Class Steffen Knoska rescued a seriously wounded comrade from incoming fire during an ambush in Afghanistan 's Kunduz Province on June 7 , 2009 .