Our colleagues could easily get drawn into this.
There are currently 7 UK mil officers serving as UNMOs in UN Observer Mission in Georgia (UNOMIG) - at least one of these will be RAF (another post is rotational RAF/Army).
UNOMIG operates in the Abkhaz/Georgian ceasefire line not in South Ossetia; however, BBC is reporting possible Russian bombrdment of Georgian positions in the Kodori Gorge (where UNOMIG patrols) and the de-facto Republic of Abkhazia has also mobilised its reserves. As an aside the Russian bombing of Poti could also be linked as it was from here that Georgia mounted an Amphibious Op in the early 90s to retake Abkhazia - this was only defeated with the (denied) assistance of Russian forces. In 2002, Russia offered the inhabitants of South Ossetia and Abkhazia Russian citizanship; Russia also provides the peacekeeping forces (under the guise of the CIS) on the GEO/ABK Ceasefire Line - so the 'defence of our citizens' rational for Russian involvement in Soth Ossetia could easily be applied to Abkhazia.
Climebear served as an UNMO in UNOMIG in 2002