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Special Enforcement Detachment
U.S. Navy
The Special Enforcement Detachment (SED) is a specialized military unit typically tasked with high-risk law enforcement and counter-terrorism operations within the naval or maritime domain. Established to address the growing need for rapid response to complex security threats, the SED is trained in direct action, hostage rescue, and maritime interdiction missions. Its personnel are selected from elite naval forces and undergo rigorous training in close-quarters combat, tactical boarding, and advanced marksmanship. Over the years, the SED has played a critical role in safeguarding strategic maritime assets and supporting national security objectives during both peacetime and crisis situations.