; and (2) by inserting after subsection (d) the following new subsection (e): (e) Compatibility with efforts of Defense Advanced Research Projects Agency The Director shall ensure that the sensor architecture developed under subsection (a) is compatible with efforts of the Defense Advanced Research Projects Agency relating to space-based sensors for missile defense. . (e) Report on progress (1) In general Not later than 90 days after the date of the enactment of this Act, Secretary of Defense shall submit to the congressional defense committees a report on the progress of all efforts being made by the Missile Defense Agency, the Defense Advanced Research Projects Agency, and the Air Force relating to space-based sensing and tracking capabilities for missile defense and how each of such organizations will work together to avoid duplication of efforts. (2) Form The report required by paragraph (1) shall be submitted in unclassified form, but may include a classified annex. 4. Integrated air and missile defense for evolving theater missile threats (a) Findings Congress makes the following findings: (1) The December 2017 National Security Strategy (NSS) states, great power competition [has] returned [as] China and Russia began to reassert their influence regionally and globally . (2) Additionally, such strategy states that China and Russia are fielding military capabilities designed to deny America access in times of crisis and to contest our ability to operate freely in critical commercial zones during peacetime with the goal of contesting [United States] geopolitical advantages and trying to change the international order in their favor . (3) The 2018 National Defense Strategy states that— (A) [t]he central challenge to U.S. prosperity and security is the reemergence of long-term, strategic competition by what the National Security Strategy classifies as revisionist powers