This joint resolution would block a proposed U.S. military technology upgrade intended for Israel. Specifically, it seeks to prohibit the sale of an advanced GPS receiver system called the KMU-556 J/B M-Code variant with Strategic Anti-jam Beamforming technology that the Biden administration notified Congress about in September 2024. The resolution was introduced by Senators Bernie Sanders, Peter Welch, and Jeff Merkley, reflecting congressional concern about enhancing Israeli military capabilities during the ongoing conflict in the Middle East. Under U.S. law, Congress has 30 days to review and potentially disapprove major arms sales to foreign governments, and this resolution exercises that authority. The measure does not involve new funding but rather aims to prevent an equipment upgrade that was already in the approval process.