The vote in the House of Commons on whether to replace the existing four "Vanguard"-class submarines was held on 18 July 2016. The Trident renewal programme motion passed with a significant majority with 472 MPs voting in favour and 117 against. The Leader of the Opposition, Jeremy Corbyn, and 47 other Labour MPs had voted against it; 41 did not vote but 140 Labour votes were cast in favour of the motion. The four new s were expected to come into operation in the early 2030s, with the programme lasting until at least the 2060s.