; and (D) fifth-generation and fourth-generation combat aircraft and their associated network-enabled precision weapons. (c) Limitation Of the funds authorized to be appropriated by this Act or otherwise made available for fiscal year 2020 for operation and maintenance for the Office of the Secretary of the Air Force and for operations and maintenance for the Office of the Secretary of the Navy, not more than 50 percent may be obligated or expended until the date that is 15 days after the date on which the Chief of Staff of the Air Force and Chief of Naval Operations submit the development and acquisition strategy required by subsection (a). 212. Establishment of secure next-generation wireless network (5G) infrastructure for the Nevada Test and Training Range and base infrastructure (a) Establishment required Not later than one year after the date of the enactment of this Act, the Secretary of Defense shall establish secure fifth-generation wireless network components and capabilities at no fewer than two Department of Defense installations in accordance with this section. (b) First installation (1) Location The Secretary shall establish components and capabilities under subsection (a) at the Nevada Test and Training Range, which shall serve as the Department’s Major Range and Test Facility Base (MRTFB) for fifth-generation wireless networking. (2) Objective The Secretary shall ensure that the establishment of components and capabilities under subsection (a) at the range described in paragraph (1) of this subsection will allow the Department to explore and demonstrate the utility of using fifth-generation wireless networking technology to enhance combat operations. (3) Purpose The purpose of the establishment of components and capabilities under subsection (a) at the range described in paragraph (1) of this subsection is to demonstrate the following: (A) The potential military utility of high bandwidth, scalable, and low latency fifth-generation wireless networking technology. (B) Advanced security technology