Once upon a time you were the enemy

So i work at a veteran's resource center and one day an old lady was guessing people what branch of service a veteran was. She told a friend of mine you looked like a marine and the guy pointed to my friend who had a thick beard "well his a marine too" then the old lady said he looked like the enemy. A few days pass a asian friend of mine told that bearded guy a joke referring to what the old lady said. Then the thick bearded guy said "Well once upon a time you looked like the enemy too" BUHH DUM TSKK!