The Department of Defense, through the Missile Defense Agency, is seeking proposals for the development of a nanosecond atomic clock that meets specific performance requirements for military applications. The objective is to create a clock with a form factor of .25L or less and a loss of 10 nanoseconds or less per day, which is crucial for navigation, communication, and cybersecurity in government vehicles and sensors. This technology is essential for ensuring precise timing that can operate under extreme conditions and serve as a reliable alternative to Global Positioning Systems. Proposals for Phase II are due by June 12, 2024, and must include documentation demonstrating prior feasibility and technical merit, with further details available at the DOD SBIR website.