Creates a Defense Department–led security cooperation initiative — the Partnership — to strengthen the defense industrial bases of the United States and allied and partner countries in the Indo‑Pacific by improving supply‑chain resilience, supporting co‑development and R&D, and building partner industrial capacity. The Secretary of Defense, working with the Secretary of State, must establish and run the Partnership, carry out authorized activities and funding uses, deliver required plans and reports on specified timelines, and may engage listed example partner countries; the authority is limited by a termination date set in the text.