A Dry Combat Submersible leaves Lockheed's facility in Palm Beach, Florida for open-water sea trials, which were completed in March 2023.Lockheed Martin US Special Operations Command and Lockheed Martin are working on a new combat mini-sub. The Dry Combat Submersible would shield SEALs from the sea, unlike other delivery vehicles. The development of the DCS and other underwater vessels reflects SOCOM's focus on future warfare. Rising tensions with Russia and China and the conflict in Ukraine have the US military focusing on what it would need to fight a major conventional war, but US special-operations forces are also updating the way they do things.For US Navy SEALs in particular, the need to cover long distances underwater and arrive undetected and ready to fight has led US Special Operations Command to develop new underwater vehicles to get them on target.In June, SOCOM declared initial operational capability for one of those vessels, the Dry Combat Submersible, a milestone that moves it a step closer to being fully fielded.'Warm, rested, hydrated and ready'SEALs prepare to launch a SEAL Delivery Vehicle from the submarine USS Philadelphia in the Atlantic Ocean in May 2005.US Navy/Chief Photographer's Mate Andrew McKaskleThe battery-powered Dry Combat Submersible is about 40 feet long and weighs a little over 28 tons.