U.S. Air Force Gen. Timothy Ray, commander of Air Force Global Strike Command, provides perspective on deterrence during his keynote address at the 2019 United States Strategic Command Deterrence Symposium at La Vista Conference Center in La Vista, Neb., July 31, 2019. This annual symposium draws academic, government, military and international experts with the goal of creating a forum to explore a broad range of deterrence issues and thinking. (U.S. Navy photo by Mass Communication Specialist 1st Class Julie R. Matyascik)