For or against?
This is in the context of the ISIS scum meeting an RAF Reaper as part of sending them to meet the real grim reaper. This is a very grey area in UK law and I personally think it needs to be clarified, so providing service personnel follow their rules of engagement they are immune from prosecution, which is where US service people stand.
IMO I can't see why we can't make belonging to ISIS or their affiliates illegal and subject to a formal rules of engagement policy. That way any citizen that joins them from the UK or any other country knows that they are subject to airborne based summary justice. If they ever return to or visit the UK they can then be tried for any illegal activities and war crimes, including treason if they have been associated with an organisation that has plotted or executed any attacks in the UK or anywhere else on our citizens. IMO legally, this is then little different to supporting the other side in times of a formally declared war.
I think doing this would remove much of the glamour that is associated and seems to attract radicalised UK citizens.
What do others think?