with the countries described in subsection (a) so as to enable the development and conduct combined space operations. (2) The policy, organizational, or other barriers that currently prevent such information sharing for combined space operations. (3) The actions being taken by the Department of Defense and the intelligence community (as defined in section 3 of the National Security Act of 1947 ( 50 U.S.C. 3003 )) to remove the barriers to such information sharing, and the timeline for implementation of such actions. (4) Any statutory changes required to remove such barriers. (5) Any other matter, as determined by the Secretary of Defense or the Director of National Intelligence. (c) Implementation update Not later than 270 days after the date of the enactment of this Act, the Secretary of Defense and the Director of National Intelligence shall provide a briefing to the appropriate committees of Congress on the implementation of the actions described in subsection (b)(3). (d) Appropriate committees of Congress In this section, the term appropriate committees of Congress means— (1) the congressional defense committees