US President Donald Trump warned Iran on Monday that it would pay "many times over" for every American soldier killed as a top Iranian leader said the conflict has escalated into a "full-scale war."
As the United States announced a new round of strikes against the Islamic Republic, Tehran's Yemeni allies, the Houthi rebels, threatened to broaden the war even further by announcing they would blockade Saudi ports.
Such a move by the Houthis would put at risk Riyadh's ability to bypass the flashpoint Strait of Hormuz for some of its oil exports and have major repercussions on the global economy.
Saudi Arabia and the Houthis traded fire last week for the first time in years, threatening a 2022 truce, but the rebels have largely remained on the sidelines since Israel and the United States attacked Iran in late February.
Saudi Arabia strongly condemned the threat from what it called the "terrorist Houthi militia" and said it "continues to support the brotherly Yemeni people and their legitimate government."
