A report, “Outlaw Regime: A Chronicle of Iran’s Destructive Activities,” compiled by the US State Department’s Iran Action Group and released in September, highlights Iran’s terror campaign in the region, including providing funding, training and weapons to the Lebanese Hezbollah, Hamas, Palestine Islamic Jihad, Kata’ib Hezbollah in Iraq and Al-Ashtar Brigades in Bahrain.

Beyond these US-designated terror groups, Iran has provided weapons and support to Shiite militant groups in Iraq, the Houthis in Yemen and the Taliban in Afghanistan.

Iran’s annual financial backing to the Lebanese Hezbollah now totals a staggering $700 million. Since the end of the 2006 Israel-Hezbollah conflict, Iran has supplied Hezbollah with thousands of rockets, missiles and small arms. Hezbollah now has more than 100,000 rockets or missiles in its stockpile. Iran also provides up to $100 million annually in support to Palestinian terrorist groups and, since 2012, has spent hundreds of millions of dollars aiding the Houthis.

https://www.state.gov/documents/organization/286410.pdf