Sgt. Travis Bishop served 15 months in Iraq, but he got lucky: He and his unit were stationed inside the compound of Baghdad's Camp Victory, where he spent the tour working behind a desk.
He didn't have to go on any raids or kill anyone. Then, early last year, he got word that his unit was headed to Afghanistan and his world turned upside down.
It's not that he didn't understand America was at war when he joined the Army in 2004 or his duty as a soldier. With violence escalating in Afghanistan, in fact, it was clear to Bishop that he would have to kill or be killed