U.S. Army soldiers run to set up a perimeter. U.S. Army soldiers from 2nd Battalion, 18th Field Artillery Regiment run to set up a perimeter around a U.S. Air Force HC-130P Hercules during a training exercise in Djibouti on April 23, 2009. The exercise consisted of transporting pararescuemen to their water jump, aerial refueling of a CH-53E Super Stallion helicopter, an assault landing on an unimproved runway and transfer/loading a simulated survivor from the CH-53E. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 788427-W-VQE40-609.jpg Photo Gallery