After a joint U.S. and Israeli military campaign against Iran killed Supreme Leader Ayatollah Ali Khamenei, Iran has launched its own strikes in return. Now, the Middle East is on a path to a broader regional war. WSJ’s Sune Engel Rasmussen explains the Iranian regime's existential fight and how its retaliation is drawing in countries around the region. Jessica Mendoza hosts. Further Listening: - The Bank Collapse Behind Iran's Protests - Trump's 'Donroe Doctrine' on Foreign Policy  Sign up for WSJ’s free What’s News newsletter. Learn more about your ad choices. Visit megaphone.fm/adchoices