On September 13, 2019, the Atlantic Council’s Middle East Programs and its Global Business Program’s Economic Sanctions Initiative hosted Marshall Billingslea, Assistant Treasury Secretary for Terrorist Financing, for a conversation on Hezbollah and Iran’s illicit financing. Topics of discussion included Hezbollah’s global network of financiers and the Trump Administration’s maximum pressure campaign against Iran. Missy Ryan, national security correspondent at The Washington Post, moderated a conversation with Mr. Billingslea on these and other topics following his remarks.