A British nuclear Astute-class submarine HMS Ambush is seen docked in a port while it is repaired in the British overseas territory of Gibraltar

A British nuclear Astute-class submarine HMS Ambush (Bottom) is seen docked in a port while it is repaired after it was involved in a "glancing collision" with a merchant vessel off the coast of the peninsula of Gibraltar on Wednesday, in the British overseas territory of Gibraltar, July 21, 2016. REUTERS/Jon Nazca

UK Nuclear Powered Submarine Positioned In Arabian Sea Amid Regional Tensions

Reuters
Total Views: 0
March 21, 2026
Reuters

March 21 (Reuters) – A British nuclear-powered submarine equipped with Tomahawk cruise missiles has taken position in the Arabian Sea, giving Britain the capability to launch long-range strikes if regional conflict escalates, the Daily Mail reported on Saturday.

Reuters could not immediately verify the report. The British Ministry of Defence did not immediately respond to a Reuters request for comment.

HMS Anson, armed with Tomahawk Block IV missiles and Spearfish torpedoes, left Perth earlier this month and traveled roughly 5,500 miles to the region, the Daily Mail said. 

The submarine surfaces periodically to communicate with the UK’s Permanent Joint Headquarters in Northwood, where any launch order would be authorized by the prime minister and conveyed by the chief of joint operations, the report added.

The deployment comes after Downing Street authorized the U.S. to use British bases for strikes on Iranian sites threatening the Strait of Hormuz.

(Reporting by Rajveer Singh Pardesi in Bengaluru; Editing by Nia Williams)

(c) Copyright Thomson Reuters 2026

Editorial Standards · Corrections · About gCaptain

This article contains reporting from Reuters, published under license.

Back to Main