This is a study sponsored by the Secretary of Defense's Office of Net Assessment in which nine members of the Naval Postgraduate School faculty attempt to reflect the intention of the three Sea Service Chiefs, A Cooperative Strategy for 21st Century Seapower, by building an illustrative fleet on paper. The fleet's composition demonstrates the new strategy's viability within an affordable SCN budget. The study concludes with 12 actions that will begin, responsibly and experimentally, to establish the foundation on which to create a twenty-first century Navy that reflects the geopolitical environment and American national goals.Director of Net Assessment, Office of the Secretary of Defens