War Machine

James "Rhodey" Rhodes  is a colonel in the US Air Force and the best friend of Tony Stark. After an incident between the two, Rhodey stole the Mark II Iron Man armor. Eventually becoming an ally of Stark in his fight against evil, Rhodes, donning the Mark II armor as  War Machine  and later Iron Patriot, though he returned to the former sometime during Ultron' s short-lived reign of terror, and joined the Avengers.