Three of Britain's four Vanguard-class nuclear submarines are now at sea at the same time, an unusual situation not seen for more than five years, The Times reports. At least one of the submarines carries nuclear-tipped Trident ballistic missiles, while the other two are expected to undergo sea trials or prepare for operations. A fourth submarine, undergoing maintenance at Davenport. Navy sources called the situation unusual but suggested it reflected an improvement in the Royal Navy's operational readiness rather than a signal aimed at Russia.

Three of Britain's four Vanguard-class nuclear submarines are now at sea at the same time, an unusual situation not seen for more than five years, The Times reports. At least one of the submarines carries nuclear-tipped Trident ballistic missiles, while the other two are expected to undergo sea trials or prepare for operations. A fourth submarine, undergoing maintenance at Davenport. Navy sources called the situation unusual but suggested it reflected an improvement in the Royal Navy's operational readiness rather than a signal aimed at Russia.