The main purpose of this legislation, known as the GPS Resiliency Report Act, is to require the Secretary of Defense to prepare and submit a report on the risks associated with the Global Positioning System (GPS) and related services. This report aims to assess potential vulnerabilities, especially in the context of military conflicts or attacks on U.S. allies. Key provisions of the act include a mandate for the Secretary of Defense to deliver a comprehensive report within one year of the law's enactment.