U.S. Marines with 3rd Battalion, 5th Regiment and the Afghan National Army provide cover as they move out of a dangerous area after taking enemy sniper fire during a security patrol in Sangin, Afghanistan, in November 2010. During its seven-month deployment, the 3/5 sustained the highest casualty rate of any Marine unit during the Afghan war, losing 25 men.
Cpl. David R. Hernandez/U.S. Marine Corps