Deterrence Dynamics and Operational Requirements Following Deployment of the Sea-Launched Nuclear Cruise Missile (SLCM-N)

Abstract

The reintroduction of the submarine-launched cruise missile–nuclear (SLCM-N) into the U.S. Navy’s arsenal signals a pivotal shift in U.S. nuclear policy, challenging long-standing declaratory norms such as the “neither confirm nor deny” stance. This project explores the strategic, operational, and political implications of integrating nuclear weapons with conventional forces, particularly within the Navy. It examines how procurement, deployment, and employment policies interact to shape declaratory policy and evaluates the relevance of current Navy language under OPNAV Instruction 5721.1H. The work concludes with recommendations to update U.S. Navy declaratory policy to maintain credible deterrence, adapt to evolving security challenges, and conform to Department of Defense (DoD) language.