Not to mention better trained, better rations and food supplies(infact best on earth) and best logistics supply chain in history of an army. No one can compete with the American soldier who knows what to do and when to do it with his 50k worth of kit, unlimited support sitting in comfort in the middle of the battle field eating his slice of pepperoni pizza from his ration pack. Meanwhile CHinese are eating shit rice with literally 3 beans in it and rubber egg mystery meat thing. You don't win wars on that diet.