Lol
The fact they are prevented from doing so by Parliament and the fact there is no evidence they are fighting is evidence they are fighting?
As soon as US pulls 2k troops, the UK-France alliance can’t hold back a Turkish invasion.
Apparently there is evidence. https://www.independent.co.uk/news/uk/home-news/sas-solider-killed-syria-friendly-fire-matt-tonroe-americans-us-special-forces-a9023841.html