This. I will add, the US military may not be the largest in the world by manpower, but it is the best equipped, best trained and has a world wide network of al

This. I will add, the US military may not be the largest in the world by manpower, but it is the best equipped, best trained and has a world wide network of allies and military bases. Certain parts of the US military are the largest, for example, the US Air Force is the largest and best equipped air force in the world. The second largest is the US Navy. The only thing China has going for it is that it is not only geographically large, but also has a huge population.