The United States Military Oath of Allegiance is a solemn oath taken by members of the United States Armed Services on commissioning. It differs slightly from that of the oath of enlistment that enlisted members recite when they enter the service.

Text of the Oath

I, {insert name here}, do solemnly swear, or affirm, that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter. So help me God.