Typhoon jets provided fire support to the SDF on the Sunday 21st of October.
That evening, an SDF advance came under fire from an Islamic State strong-point five miles north-east of Abu Kamal.
The Typhoon flight conducted a carefully planned attack with a single Paveway IV, which struck the strong-point and immediately eliminated the threat to the SDF, say the MoD.
By September 2017, the Ministry of Defence had announced that over 1,000 personnel were engaged in theatre and that the Royal Air Force had conducted around 900 airstrikes, flying over 2,200 sorties, killing 3,000 Islamic State fighters.
Last year, it was reported that the Royal Air Force is operating at its most intense for 25 years in a single theatre of operation which far outstripped the UK involvement in Iraq and Afghanistan – RAF jets have dropped 11 times more bombs (1,276 strikes) on Syria and Iraq in the preceding 12 months than they had in the busiest year of action in Afghanistan a decade previously.
As of March last year, the MoD says the operation has cost the UK taxpayers £265 million so far. As of April 2017, 37 Hellfire missiles, 20 Brimstone missiles, 30 unspecified/other armaments were used in the operation against Islamic State in Iraq and Syria.