The main purpose of this legislation is to simplify and enhance the process for transferring U.S. defense equipment and services among the Baltic states, which include Estonia, Latvia, and Lithuania. The goal is to strengthen military cooperation and readiness among these countries, particularly in the context of regional security. Key provisions of the legislation include allowing any defense equipment or services provided by the U.S. to one Baltic state to be transferred to another Baltic state without needing prior approval from the U.S. government.