The vessel had previously been operated alongside her sister ship Grey Fox as part of Operation Lifespan in Northern Ireland since 1993 as LPV (Lough Patrol Vessel) Grey Wolf[2] [3] both vessels were based in their own special dock at Massereene barracks with access to 6 Mile Water in Lough Neagh, Northern Ireland where she was commanded and manned by a crew of seven Royal Marines and two Royal Navy personnel conducting maritime counter terrorism, surveillance, intelligence and anti-smuggling operations. The crew included a four-man team of Royal Marines to conduct boarding and ground operations the vessels would normally tow a Arctic rigid inflatable boat (RIB) used to deploy this team.[4]
On 10 April 2009 a vessel from Spain's Civil Guard Police force entered Gibraltar territorial waters unannounced and approached the area near Gibraltar's airport.[5] HMS Sabre approached, and there was no response from the Spanish vessel. It was warned to leave the territorial waters, and after consulting with its superiors it did so. However, accounts vary between the Royal Navy and the Spanish versions. The Royal Navy states that its guns were loaded at the time, however the Spanish accounts state that the guns were specifically pointed at the Spanish vessel. In addition, Spanish MP Jose Ignacio Landaluce from the People's Party vowed to take up the issue in parliament. He said Spain "would not allow a Civil Guard vessel to be expelled from its own home".
In May 2016 Spain's Civil Guard Police force vessel Rio Cedena twice tried to cut across the path of the submarine in Gibraltar territorial waters.[6] HMS Sabre fired warning flares to deter the Spanish vessel.[7]
In July 2017 it was revealed that the Gibraltar Squadron would receive two new warships which will be more "capable", "faster" and have "bigger guns", to replace Sabre and Scimitar "within the next two years".[8]
On 24 July 2020, an announcement was made that the promised two new warships had been ordered from Marine Specialised Technology (MST Ltd) with the first to be delivered in Q3 2021/22 and the second in Q1 2022/2023. The contract is expected to cost at least £9.9 million. The patrol vessel replacements are initially going to be armed with X3 General Purpose Machine Guns (one on the foredeck and two on the aft deck) as well as being fitted for but not with a 0.50 cal Heavy Machine Gun. The ships are going to be long, carry six crew and six passengers and travel at .[9]
In September 2020 Sabre, along with her sister ship Scimitar, returned to Portsmouth aboard having been replaced temporarily by and before their long-term replacements arrive.[10]
After operating in UK waters for a period, Sabre and Scimitar were decommissioned in a joint ceremony at Portsmouth Naval Base on 30 March 2022.[11]