U.S. Marine Sgt. Joseph Perez (Right), assigned to

U.S. Marine Sgt. Joseph Perez (Right), assigned to Echo Company, 2nd Battlaion, 3rd Marines (2/3), Regimental Combat Team - 1, posts security as Lance Cpl. Jonathan Cook (Center), takes information from a local national near Combat Outpost (COP) Spin Ghar, Nawa-i-Barakzai District, Afghanistan, on March 28, 2011. Interviewing locals as part of the daily patrol of a U.S. Marine is a key way in which the battlefield is constantly kept familiar. (Marine photo/Cpl. Jeffrey Scarmazzi)