For decades U.S. SOCOM (Special Operations Command) has been trying to develop a new SDV (SEAL Delivery Vehicles). These are small submersible vehicles to take SEAL commandos from a submarine or small ship to a hostile shore. SOCOM has finally placed an order for a militarized version of the S302 commercial submarine. This 27 ton vessel is called a DCS (Dry Combat Submersible) SDV. There is already a “wet” SDV but a DCS version has been long sought because it delivers SEALs to a hostile shore in better shape physically and psychologically to handle their mission on land.