A Chilean Air Force member remove safety wire in preparation to refurbish hydrazine tank during a U.S. Air Force hydrazine Mobile Training Team hands-on training at Los Condores Air Base, Chile, Nov. 13, 2018. Personnel protective equipment must be worn when working closely with hydrazine tanks to prevent injury in the event of a hydrazine spill. Hydrazine is extremely flammable, combustible and cancerous. (U.S. Air Force photo by Tech. Sgt. Angela Ruiz)