The joint U.S. and Israeli attack on OPEC member Iran risks a major oil supply disruption in the Middle East that, in a worst-case scenario, could trigger a global economic recession. Follow CNBC’s live coverage of the U.S.-Israel strikes in Iran Iran is the fourth-largest oil producer in OPEC at just over 3 million barrels...

Khamenei, 86, one of Iran’s longest-serving leaders and a lifelong foe of both the U.S. and Israel, took power in 1989. In the nearly 40 years that followed, the ideological hard-liner ruthlessly put down public demonstrations and silenced dissidents who challenged his rule. In recent months, Iran had been gripped by nationwide protests fueled by...