Huntington Ingalls Industries, Inc. is engaged in building and delivering the survivable naval ships and technologies that safeguard America’s seas, sky, land, space, and cyber. It operates through three segments: Ingalls, Newport News and Mission Technologies. Its Ingalls segment is engaged in designing and constructing non-nuclear ships for the United States Navy and United States Coast Guard, including amphibious assault ships, expeditionary warfare ships, surface combatants, and national security cutters (NSC). Its Newport News segment is engaged in designing and constructing nuclear-powered aircraft carriers and submarines, and refueling and overhauling, and the inactivation of nuclear-powered aircraft carriers. The Mission Technologies segment is engaged in providing mission-based solutions, unmanned systems, fleet support services, and nuclear and environmental services. It conducts its business with the United States Government, primarily the Department of Defense (DoD).