; and (B) the working or natural lands that serve to protect and support the rural economy, the natural environment, outdoor recreation, and the national defense test and training missions of the military- or State-owned National Guard installation or installations. (f) Conforming amendment Section 312(b) of the National Defense Authorization Act for Fiscal Year 2014 ( Public Law 113–66 ; 127 Stat. 729; 10 U.S.C. 2684a note) is repealed. 312. Increased percentage of sustainment funds authorized for realignment to restoration and modernization at each installation (a) In general The Secretary of Defense may authorize an installation commander to realign up to 7.5 percent of an installation’s sustainment funds to restoration and modernization. (b) Sunset The authority under subsection (a) shall expire at the close of September 30, 2022. (c) Definitions The terms sustainment , restoration , and modernization have the meanings given the terms in the Department of Defense Financial Management Regulation. C Reports 321. Plan for modernized, dedicated Department of the Navy adversary air training enterprise (a) Plan required The Chief of Naval Operations and the Commandant of the Marine Corps shall develop a plan— (1) to establish a modernized, dedicated adversary air training enterprise for the Department of the Navy in order to— (A) maximize warfighting effectiveness and synergies of the current and planned fourth and fifth generation combat air forces through optimized training and readiness; and (B) harness intelligence analysis, emerging live-virtual-constructive training technologies, range infrastructure improvements, and results of experimentation and prototyping efforts in operational concept development; (2) to explore all available opportunities to challenge the combat air forces of the Department of the Navy with threat representative adversary-to-friendly aircraft ratios, known and emerging adversary tactics, and high-fidelity replication of threat airborne and ground capabilities