The U.S. on the Way to Strategic Invulnerability

... the Sea Hunter , an autonomous unmanned surface vessel that has already entered service. The ship was built as part of the DARPA Anti-Submarine Warfare Continuous Trail Unmanned Vessel programme. The unmanned vessel is designed to operate as part of ... ... creates additional risks for strategic stability. It is known that projects are under way in the United States to develop reusable space hypersonic systems and micro spacecraft, intercept spacecraft with “inspector” satellites, and carry out kinetic ...