Five KC-135R Stratotankers are seen shortly after taking off from Grissom Air Reserve Base, Ind., March 9, 2014. During the 434th ARW's March unit training assembly, the unit held a strategic warfare exercise, executing various response, mobility, and command and control procedures in response to a simulated global threat, which culminated in 10 Stratotankers taking off in two five-ship formations. (U.S. Air Force photo/Tech. Sgt. Mark R. W. Orders-Woempner)