Decisive Point - the USAWC Press Podcast Companion Series. The Strategic Studies Institute (SSI) is the U.S. Army’s institute for geostrategic and national security research and analysis. SSI conducts global geostrategic research and analysis that creates and advances knowledge to influence solutions for national security problems facing the Army and the nation. SSI serves as a valuable source of ideas, criticism, innovative approaches, and independent analyses as well as a venue to expose external audiences to the U.S. Army’s contributions to the Nation.