Iran lashed out at the US for crossing “a very big red line” with its risky decision to launch strikes on three Iranian nuclear sites.

The world grappled Sunday with the enormous implications after the United States inserted itself into Israel's war against Iran with an attack that raised urgent questions about what remained of Tehran’s nuclear program and how its weakened military might respond.

Iran's military launched dozens of missiles into Israel on Saturday night after President Donald Trump ordered U.S. airstrikes against three Iranian nuclear sites at Fordow, Natanz and Isfahan. Trump and other world leaders have called on Iran to come to the negotiating table.