The Department of Defense, specifically the U.S. Navy, is seeking innovative solutions for detecting Unmanned Underwater Vehicles (UUVs) through its Small Business Innovation Research (SBIR) program. The objective is to develop detection technologies that extend beyond traditional active and passive sonar systems, capable of identifying small and medium-sized UUVs at distances of up to 1,000 yards and depths of 800 feet. This initiative is crucial as the proliferation of UUVs necessitates enhanced capabilities to protect U.S. Navy assets from unauthorized underwater incursions. Proposals are due by May 21, 2025, with the opportunity set to open on April 23, 2025, and further details can be found at the official SBIR website.