Force a cadre of military and civilian personnel within the Air Force who shall assist the Space Force in establishing and maintaining an ethos and culture for space warfighting. . (2) Service of incumbent Commander of Air Force Space Command as Commander of United States Space Force The individual serving as Commander of the Air Force Space Command as of the date of the enactment of this Act may serve as the Commander of the United States Space Force under subsection (b) of section 9063 of title 10, United States Code (as added by paragraph (1)), after that date without further appointment as otherwise provided for by that subsection. (3) Secretary of Defense report on concurrency of command (A) In general Not later than one year after the date of the enactment of this Act, the Secretary of Defense shall submit to the congressional defense committees a report setting forth an assessment of the advisability of permitting the Commander of the United States Space Force to serve concurrently as Commander of the United States Space Command as authorized by subsection (c) of section 9063 of title 10, United States Code (as so added). (B) Comptroller General briefing Not later than 30 days after the submittal of the report required by subparagraph (A), the Comptroller General of the United States shall provide the congressional defense committees a briefing on the assessment of the Comptroller General of the matters contained in the report. (4) Secretary of the Air Force briefings on USSF On or about March 31, 2020, and during every calendar year quarter thereafter through March 31, 2022, the Secretary of the Air Force shall provide the congressional defense committees a briefing on the following: (A) The current status of the missions and manpower of the United States Space Force under section 9063 of title 10, United States Code (as so added), including the current status of the assumption by the United States Space Force of the elements to constitute the United States Space Force, including the elements of the Air