; and (D) the percentage of days deployed, aggregated by active and reserve components. (c) Report Not later than May 1, 2024, the Secretary of Defense shall submit to the congressional defense committees a report that includes the results of a study required under subsection (a). 1071. Report on equipping certain ground combat units with small unmanned aerial systems (a) Report required Not later than one year after the date of the enactment of this Act, the Secretary of Defense, in consultation with the Secretaries of the military departments, shall submit to the congressional defense committees a report on equipping platoon-sized ground combat formations with group 1 or group 2 unmanned aerial systems. (b) Elements The report submitted pursuant to subsection (a) shall address the following: (1) The use of group 1 or group 2 unmanned aerial systems in the Ukraine conflict and best practices learned. (2) The potential use of group 1 or group 2 unmanned aerial systems to augment small unit tactics and lethality in the ground combat forces. (3) Procurement challenges, legal restrictions, training shortfalls, operational limitations, or other impediments to fielding group 1 or group 2 unmanned aerial systems at the platoon level. (4) A plan to equip platoon-sized ground combat formations in the close combat force with group 1 or group 2 unmanned aerial systems at a basis of issue, as determined appropriate by the Secretary of the military department concerned, including a proposed timeline and fielding strategy. (5) A plan to equip such other ground combat units with group 1 or group 2 unmanned aerial systems, as determined appropriate by the Secretary of the military department concerned. 1072. Biannual briefings on homeland defense planning (a) In general Not later than 30 days after the date of the enactment of this Act, and every 180 days thereafter through February 1, 2026, the Secretary of Defense shall provide to the congressional defense committees a briefing on efforts to bolster homeland defense. (b)