The United States Department of Defense (DoD, USDOD, or DOD) is an executive branch department of the federal government of the United States charged with coordinating and supervising all agencies and functions of the U.S. government directly related to national security and the United States Armed Forces. As of November 2022, the U.S. Department of Defense is the second largest employer in the world after India (and potentially China, if including the Central Military Commission), with over 1.
https://en.wikipedia.org/wiki/United_States_Department_of_Defense