MPs have voted in favour of renewing the UK's Trident nuclear deterrent by 472 votes to 117 - a majority of 355.
The result is a strong vote of confidence in the weapons system, renewal of which is predicted to cost £31 billion, with a £10 billion contingency fund also set aside.
Theresa May has said it would "quite wrong" not to renew Trident, which she described as an "essential part" of our national security and the "ultimate insurance" against nuclear attack.
Another Scottish independence referendum is fast approaching, SNP warns, after Westminster voted to renew Trident.
Labour MPs reacted angrily after Jeremy Corbyn referred to the party's policy on the UK's nuclear deterrent in the past tense.
Nicola Sturgeon has accused the UK Government of "playing games" over Trident, ahead of MPs voting on the renewal of the nuclear deterrent.