10 U.S.C. § 506Section
§ 506. Regular components: extension of enlistments during war
An enlistment in the Regular Army, Regular Navy, Regular Air Force, Regular Marine Corps, Space Force, or Regular Coast Guard in effect at the beginning of a war, or entered into during a war, unless sooner terminated by the President, continues in effect until six months after the termination of that war.
(Added Pub. L. 90–235, §2(a)(1)(B), Jan. 2, 1968, 81 Stat. 754; amended Pub. L. 116–283, div. A, title IX, §924(b)(5)(B), Jan. 1, 2021, 134 Stat. 3822; Pub. L. 118–31, div. A, title XVII, §1717(b)(3), Dec. 22, 2023, 137 Stat. 655.)