(12) “Active duty” means full-time duty in the active military service of the United States. It includes such Federal duty as full-time training duty, annual training duty, and attendance, while in the active military service, at a school designated as a service school by law or by the Secretary of the military department concerned. It does not include full-time National Guard duty.
32 USC § 101(12)
None identified, default scope is assumed to be the parent (chapter 1) of this section.