As seen through a night-vision device, a U.S. Army soldier guards a detainee during an air assault mission during Operation Champion Sword in Khost province, Afghanistan, Aug. 2, 2009. As seen through a night-vision device, a U.S. Army soldier guards a detainee during an air assault mission during Operation Champion Sword in Khost province, Afghanistan, Aug. 2, 2009. SHARE: Download: Full Size (2.75 MB) Tags: photo essays Credit: VIRIN: 333552-H-TLR71-259.jpg Photo Gallery