A B-52 Stratofortress arrives at Al-Udeid Air Base, Qatar, from Barksdale Air Force Base, Louisiana, USA, on 9 April 2016, to conduct operations against Daesh. Photograph by Staff Sgt. Corey Hook, U.S. Air Force, and courtesy of the U.S. Air Force. During a press conference on 12 April 2016 with journalists on his flight to...