Since I'm an old printer, here's one I know. Corrupt nation states like those you've mentioned supply terrorists with documents -- passports, cartes d'itentite, etc. -- through suborned and infiltrated government printing offices. It's an essential element in the terror arsenal, without which the jihadist movement would be seriously crippled. If for no other reason, shut down the corrupt states to shut off the supply of travel documents to terrorists.
Many jihadists, I have read, are still traveling on Kuwaiti documents printed up during the Iraqi occuption of that country.