A submarine base is a military base that shelters submarines and their personnel. Examples of present-day submarine bases include HMNB Clyde, Île Longue (the base for France's Force océanique stratégique), Naval Submarine Base Kings Bay, Naval Submarine Base New London, and Rybachiy Nuclear Submarine Base (near Petropavlovsk-Kamchatsky). INS Vajrabahu and INS Satavahana are the submarine bases of the Indian Navy. A new underground submarine base, INS Varsha is under construction near Vishakhapatnam for the new expanding fleet of Indian nuclear submarines.