; 10 U.S.C. 2431 note); and (B) submits such strategic plan to the congressional defense committees. (e) Designation of Under Secretary of Defense for Research and Engineering as the official with principal responsibility for development and demonstration of directed energy weapons Section 219(a)(1) of the National Defense Authorization Act for Fiscal Year 2017 ( Public Law 114–328 ; 10 U.S.C. 2431 note) is amended by striking Not later and all that follows through of Defense and inserting The Under Secretary of Defense for Research and Engineering shall serve . (f) Under Secretary defined In this section, the term Under Secretary means the Under Secretary of Defense for Research and Engineering in the Under Secretary's capacity as the official with principal responsibility for the development and demonstration of directed energy weapons pursuant to section 219(a)(1) of such Act ( Public Law 114–328