The United States Army, also known as the United States Military, is one of the five divisions of the Armed Forces of the United States of America. It is the land warfare service branch of the United States Armed Forces.
In 2013, Kal-El surrendered himself to the United States Army after they took Lois Lane into custody, in order to turn him over to General Zod. Kal-El's surrender was conditional on Lane's release. Notably, it was the United States Army that gave Kal-El the nickname "Superman".