CAIRO (AP) — Iran launched a barrage of missiles at American forces in the Middle East early Wednesday as the U.S. partnered with Saudi Arabia to strike Tehran-backed militias in neighboring Iraq, killing at least 20 fighters. Saudi Arabia had accused the Iraqi militias of firing drones against its oil facilities over the past two days. The U.S. military later announced that American and Saudi fighter aircraft had struck multiple logistics and weapons sites in eastern Iraq in response to the alleged drone attacks on Saudi Arabia. Attacks on Saudi oil facilities could worsen global energy crisisSaudi Arabia is also locked in a renewed conflict with the Houthis. In 2019, attacks on Abqaiq claimed by the Houthis disrupted production of 5.7 million barrels per day, spiking global oil prices and providing an initial demonstration of the vulnerability of Saudi oil facilities to missile and drone attacks.