The SABER Act of 2026 expands how money in the Ukraine Support Fund can be used by allowing purchases of defense articles and services for Ukraine's military response and recovery efforts related to Russian aggression. The legislation amends an existing law that created the Ukraine Support Fund, broadening the fund's permitted uses to explicitly include Ukrainian defense procurement. The bill directly affects Ukraine's ability to obtain military equipment and services with U.S.-provided support funds. No specific new funding amounts or implementation timelines are outlined in the legislation; rather, it authorizes the use of existing funds that were previously established under the Rebuilding Economic Prosperity and Opportunity for Ukrainians Act.