At 2.30am EST on Saturday morning, President Donald Trump announced via a video on Truth Social from his resort in Mar-a-Lago that the U.S. military has begun “major combat operations in Iran.” The overnight strikes, which are an unequivocal violation of the UN Charter, come after weeks of U.S. military build-up in the region and against the backdrop of ongoing diplomatic negotiations over Iran’s nuclear program. Read about the stakes for the of the international reaction here.