Air Force Vice Chief of Staff Gen. Larry O. Spencer testifies during the Senate Armed Services Committee's hearing on current military readiness in Washington, D.C., March 25, 2015. Spencer testified with Vice Chief of Staff of the Army Gen. Daniel B. Allyn, Vice Chief of Naval Operations Adm. Michelle J. Howard, and Assistant Commandant of the Marine Corps Gen. John M. Paxton Jr. Spencer stressed that a ready, strong and agile Air Force is a critical component of the best, most credible military in the world. (U.S. Air Force photo/Scott M. Ash)