The United States Department of Defense is a government agency in charge of the armed forces of the United States of America. Having its headquarters at the Pentagon in Arlington, Virginia, it oversees the army, the Marine Corps, the navy, the air force, the space force, and the coast guard. Some of its leaders include the Secretary of Defense, the Deputy Secretary of Defense, the Chairman of the Joint Chiefs of Staff, the Vice Chairman of the Joint Chiefs of Staff, and so on.
The US Department of Defense is reported to be the largest employer of labor in the world, with about 1.3 million servicemen on active duty around the world. It is said to have a revenue of more than $10 billion. Career opportunities at the department include store worker, materials handler, materials expediter, store associate, meat cutting worker, office automation assistant, intelligence operations specialist, educational aid, custodial worker, and so on.