In the nearly two years since President Obama notoriously likened ISIS to a “jayvee team” of terrorists, the group has staked claim to a caliphate in Iraq and Syria, and recruited tens of thousands of foreign fighters from across the globe.

“Governments and NGOs have been really late to the dance, frankly,“ said Mark Wallace, CEO of the summit’s co-host — the Counter Extremism Project — and a former U.S. ambassador to the United Nations. “We are playing catch up. ISIS is still winning the online communications game, but I think we’re closing the gap.  [A]nd hopefully … one day ISIS will be flooded online and won’t be able to effectively communicate.”