"War Machine" is a fictional character from the Marvel Comics universe, primarily known as an ally of Iron Man. The character, whose real name is James "Rhodey" Rhodes, is a military officer who dons a heavily armed suit of armor, similar to Iron Man's, but with a focus on weaponry and combat capabilities. In the Marvel Cinematic Universe, War Machine is portrayed by actor Don Cheadle. He first appeared in "Iron Man 2" and has since played significant roles in various films, including "Avengers: Endgame." The character represents themes of friendship, loyalty, and the complexities of military power.