Authorizes and funds expanded U.S.–Israel defense cooperation across multiple areas: integrated air and missile defense study for the CENTCOM region, a new joint counter‑unmanned systems program, expanded anti‑tunnel and counter‑UAS authorities, joint R&D in emerging technologies, an extension of a war reserve stockpile authority, a Defense Innovation Unit (DIU) office in Israel, and negotiations about Israel joining the U.S. national technology and industrial base. It sets deadlines for studies and office standup (90–180 days), requires regular reports to Congress, and includes multi‑year funding authorizations for the new cooperative programs (notably $150 million per year for the counter‑unmanned systems program for FY2026–2030).