; or (B) separate private network and public network infrastructure. (b) International cooperation activities The Secretary may engage in cooperation activities with foreign allies and partners of the United States, using an authority provided by another provision of law, to inform the efficient and effective deployment of Open Radio Access Network architecture and to implement the strategy required under subsection (a)(1). (c) Due date for strategy and briefing (1) Strategy The Secretary shall develop the strategy required in subsection (a)(1) not later than 120 days after the date of the enactment of this Act. (2) Briefing Not later than 150 days after the date of the enactment of this Act, the Secretary shall provide to the congressional defense committees a briefing on the strategy developed under paragraph (1) of subsection (a) and the activities of the Secretary under such subsection. (d) Definition of Open Radio Access Network The term Open Radio Access Network means a network architecture that is modular, uses open interfaces, and virtualizes functionality on commodity hardware through software. 1712. Department of Defense information network boundary and cross-domain defense (a) Modernization program required The Secretary of Defense shall carry out a modernization program for network boundary and cross-domain defense against cyber attacks, expanding upon the fiscal year 2023 pilot program and initial deployment to the primary Department of Defense internet access points (IAPs) managed by the Defense Information Systems Agency (DISA). (b) Program phases (1) In general The modernization program required by subsection (a) shall be implemented in phases, with the objective of completing the program by October 1, 2028. (2) Objectives The phases required by paragraph (1) shall include the following objectives: (A) By the end of fiscal year 2026, completion of— (i) a pilot of modernized boundary defense capabilities and initial and full deployment of the capabilities to internet access points managed by the