Does make you wonder what the US/UK airstikes have consisted of.
Why is there still one upturned brick left in Raqqua to bomb? It should have been levelled by now.
Maybe we were dropping leaflets on them.
We could easily have levelled the town.
Levelling a town is something that is probably not hard with modern aircraft, and there are large numbers of "dumb" bombs in inventory.
The problem is just dropping bombs at random rarely gets the people you want (who will be far better prepared than the general population and likely either able to leave at the first sign of an aircraft or able to get into shelter), but will end up killing vast numbers of innocent people who couldn't get out.
And if you want to give ISIS a lovely early Christmas present of a recruiting tool, bombing indiscriminately and killing large numbers of civilians would be ideal (it's pretty much the response they want).
IIRC the UK/US airstrikes have been targeting specific people and positively identified ISIS fighters, buildings and vehicles, but there is a limit to how many such limited attacks any one country can do in a day as it requires a lot more than just an aircraft with some bombs (you need intelligence assets to track the targets for example, preferably tracking the people/vehicles right up till they're hit).
The Russians have been basically targeting any rebels in Syria including those fighting ISIS as well as Assad, and haven't really cared about being precise (IIRC they've been using area affect weapons and poor accuracy bombs).
I suspect the French have stepped up their campaign but may not have the resources to keep it up indefinitely, as things like modern munitions are not exactly made in huge numbers constantly, and they probably don't have the airframes to keep doing high numbers of missions per day for long (part of the reason for moving their carrier into the area will be to increase the number of aircraft and the maintenance facilities for them).