The NATO Submarine Rescue System NSRS. NSRS is jointly owned by France, Norway and the UK and consists of two sub-systems that can be mobilised independently of each other. Is normally based at Faslane. Ready to be deployed anywhere by air and then onto designated vessels on receipt of a 'SUBSUNK’ alert. The Submarine Rescue Vehicle (SRV) shown here during a previous embarkation on NoCGV Harstad.