SEEING GREEN U.S. Army Sgt. 1st Class James Lee provides aerial security from the rear door of a CH-47 Chinook helicopter over Khost province, Afghanistan, Feb. 24, 2010. Lee, an aerial gunner, is assigned to Company B, 1st Battalion, 169 Aviation Regiment. Chinook helicopters are one of the primary air platforms for moving troops and supplies throughout Afghanistan. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 794283-W-RYM77-073.jpg Photo Gallery