Three of Britain's four nuclear submarines are at sea at once for the first time in at least seven years
Britain deployed three of its four Vanguard-class nuclear submarines simultaneously at sea, a move defence sources describe as occurring in "unusual circumstances" with no full public explanation.
HMS Vigilant has put to sea for trials following a lengthy maintenance period, bringing an end to punishing patrols that had kept submariners away from home for more than 200 days at a stretch. Simultaneously, the Foreign Office issued an urgent warning that "the risk of sudden escalation is HIGH" in the Middle East, covering airspace over Israel, Iran, Saudi Arabia and Yemen.
Britain's adversaries and NATO allies will take note: each Vanguard boat carries more destructive power than all explosives used in the Second World War.
With only two boats operational, crews had previously endured patrols exceeding 200 days — HMS Victorious holds the record at 207 days, set in 2021.
An insider welcomed Vigilant's return: 'We should be moving from a two boat rotation to a three boat rotation.'