A nuclear-powered fleet refers to a group of ships or submarines that use nuclear reactors for propulsion. This technology allows vessels to operate for long periods without needing to refuel, making them highly efficient for military and commercial purposes. The most notable examples include U.S. Navy submarines and aircraft carriers, which can remain at sea for months. Nuclear power in maritime fleets offers several advantages, including reduced fuel costs and lower emissions compared to traditional fossil fuels. However, it also raises concerns about safety, waste disposal, and the potential for nuclear proliferation, necessitating strict regulations and oversight.