TRAINING MISSION U.S. Air Force 1st Lt. Matthew Alexander taxis before a training flight mission on Lask Air Base, Poland, March 18, 2014. The aerial training heightens a pilot’s ability to operate across a range of military operations with precise, full-spectrum capabilities. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 923317-R-HSC42-499.jpg Photo Gallery