Two pararescue trainees run through an obstacle course. Two pararescue trainees run through an obstacle course after a full day of physical training during the pararescue indoctrination-training course at Medina Base on Lackland Air Force Base in San Antonio, Texas, on April 6, 2006. The course prepares the trainees for the difficult training they must endure to become U.S. Air Force pararescuemen. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 048363-I-AHW11-017.jpg Photo Gallery