NIGHT VISION As seen through a night-vision device, U.S. Air Force pararescuemen and Swedish air force rangers wait for evacuation after finding a mock survivor during exercise Angel Thunder at Playas Research and Training Center, N.M., Oct. 17, 2011. About 1,400 U.S. military, federal and state employees and coalition forces are participating in the 6th annual exercise, the world's largest military combat search and rescue training event. The U.S. pararescumen are assigned to the 103rd Rescue Squadron. SHARE IMAGE: Download Image: Full Size (0.06 MB) Photo By: VIRIN: 232459-F-GKT16-721.jpg Photo Gallery