When Spc.Ty Carter first arrived in Afghanistan, he took one look at his surroundings and thought, "This is a death trap."
He would soon learn just how right he was.
Combat Outpost Keating was a sitting target for nearby Taliban insurgents: It sat deep within a valley, surrounded by mountains.
The American soldiers stationed there knew it was only a matter of time before something bad happened. "We just didn't know when," Carter said.