Royalist
"Quite enough to keep our aircraft busy"
You see that's the problem. Time sensitive targetting, cued by real-time intelligence with low-yield precision weapons against high value individuals in the IS leadership is exactly the effect that aircraft like the GR4 or MQ-9 Reaper can deliver. You don't need 'boots on the ground' and it has an assymetrically demoralising effect on insurgent forces like IS. They don't respect borders, just like the Taliban didn't on the PAK/AFG border. Being able to strike them over a wider area will improve the chances of getting these people that lead IS.
As I have hinted at before - bombing is not really bombing any more. It is more like sniping from block 2 for maximum effect against the brains of the threat.
CPL Clott
PS. Looks like PN beat me too it on my last point.