Roots of ISIS were sponsored by USA, there is evidence some of them were trained in Jordan and armed to combat Syrian troops/tanks. I watched a video of how "moderate" Syrian rebels would travel across the Turkish border and come back with with crates of rocket launchers and other goodies from American intelligence operatives.
Regarding ongoing funding for ISIS, its speculated much of it comes from our wealthy middle eastern oil rich US allies. Saudi Arabia, Qatar, and UAE. This would make sense because ISIS is based off of Wahhabism and most of those extremist asshats live in those countries.
Regarding ongoing funding for ISIS, its speculated much of it comes from our wealthy middle eastern oil rich US allies. Saudi Arabia, Qatar, and UAE. This would make sense because ISIS is based off of Wahhabism and most of those extremist asshats live in those countries.