U.S. Army Staff Sgt. Edwin Thompson, a flight engineer assigned to the Colorado Army National Guard 's 2nd Battalion, 135th Aviation Regiment, looks for a designated drop zone from the ramp of a Colorado Army CH-47D Chinook helicopter over Fort Carson, Colo., Dec. 10, 2008. The Colorado National Guard crew teamed up with 10th Special Forces Group, Airborne, and Dutch Special Forces to conduct airborne operations. U.S. Army Staff Sgt. Edwin Thompson, a flight engineer assigned to the Colorado Army National Guard 's 2nd Battalion, 135th Aviation Regiment, looks for a designated drop zone from the ramp of a Colorado Army CH-47D Chinook helicopter over Fort Carson, Colo., Dec. 10, 2008. The Colorado National Guard crew teamed up with 10th Special Forces Group, Airborne, and Dutch Special Forces to conduct airborne operations. SHARE: Download: Full Size (4.04 MB) Tags: Photo Essays Credit: VIRIN: 116340-N-TVQ24-611.jpg Photo Gallery