Defence Secretary Michael Fallon has today announced £642 million of investment for the Successor submarine programme. The funding will help to progress work on the four new submarines that will begin replacing the Vanguard class, from the 2030s. The funding will go towards new parts and facilities, as well as further design work. The investment will include £225 million of investment for new facilities, at BAE Systems at Barrow-in-Furness, where the submarines will be assembled. That investment will ensure the submarines are built with maximum efficiency.