Mosul, Iraq, Aug. 20, 2010: Sgt. Ryan Carlson, left, shows an Iraqi soldier how to raid a home at Checkpoint 3, a small base outside Mosul. Training the Iraqi security forces will be key as the U.S. nears the 2011 deadline to withdraw all troops.

See additional photos and read the 2010 article here: https://www.stripes.com/history/2010-08-25/soldiers-remaining-in-iraq-expect-little-will-change-as-mission-evolves-1903267.html1