The 9th Mine Countermeasures Squadron is a front-line squadron of the Royal Navy with responsibility for mine warfare in the Persian Gulf region. The squadron is based in Bahrain and, as of 2024-25, is equipped with three mine countermeasure vessels. Normally, a Royal Fleet Auxiliary (RFA) support ship has also been assigned to the squadron. However, in late 2024 the squadron's normal support ship, RFA Cardigan Bay, returned to the UK for refit and acute personnel shortages in the RFA made her replacement in the Gulf uncertain.[3]
History
1962–1971
In its original guise, the 9th Mine Sweeping Squadron (MSS) was formed of four Ton-class sweepers – HM Ships Appleton, Kemerton, Flockton and Chilcompton which were specially fitted for the rigours of operating in the Persian Gulf. The ships had their pennant numbers painted in Arabic on the stern and carried a funnel badge featuring a dhow on a yellow background.[1]
HMS Bangor (undergoing refit in the Gulf due to damage suffered in 2024 collision)
With the planned retirement of all the remaining Sandown-class vessels by 2025, and their replacement with both autonomous minehunting systems and supporting "motherships", at minimum a new configuration of the squadron was likely.[7] In February 2023, the autonomous minehunting vessel RNMB Harrier arrived in Bahrain to begin trials of autonomous systems in hot weather. The autonomous vessel was to operate from RFA Cardigan Bay.[8][9]
In April 2024 a gap in the capability of the squadron was created when Cardigan Bay deployed, initially to the Mediterranean to contribute to the British presence there in the context of the Israel-Hamas War, and then, in August, to the U.K. for refit.[10] It was subsequently reported that Cardigan Bay would be laid up in the U.K. through 2025, only commencing her planned refit in 2026.[11]