A B-52 Stratofortress from the 20th Expeditionary Bomb Squadron, flies over the Pacific Ocean June 26, 2015. Airmen from the 20th EBS dropped the final M117 bomb in the Pacific Air Force’s inventory June 26 on an uninhabited island off the coast of Guam as part of a training mission to ensure the security and stability of the Indo-Asia Pacific region. (U.S. Air Force photo by Airman 1st Class Joshua Smoot/Released)