Ten French warplanes drop 20 bombs on ISIS Syrian HQ

Surely it cannot be hard for the US and its allies to bomb every admin center and camp in ISIS territory! Why is it not being done? An underground bunch of terrorist cannot be bombed, A state such as ISIS is trying to establish can have its infrastructure totally destroyed, Even its access to the Internet must go through physical routers which can be hit. It may mean roughing up "allies" in Saudi Arabia and the Gulf states - but so what?
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