CEP Senior Advisor Edmund Fitton-Brown writes: "Iran’s 45-year trajectory from the Khomeini revolution to its current challenge to Israel, the West, and the Rules-Based International System (RBIS) led to developing and solidifying its “Axis of Resistance.” Tehran supports and coordinates this group of regional proxies, including Yemen’s Houthis, Hamas, and Lebanese Hezbollah, to challenge its enemies in various theaters. A key Iranian proxy is found among the Iraqi Shia, who have a history with Iran that goes back to the Saddam Hussein era but whose full value to Tehran only started to be realized after the 2003 US invasion made Iraq’s largest community dominant in that nation’s politics."