Iran warns U.S. and Israel amid military buildup, following deadly crackdown on protests after rial collapse.

Iran's Revolutionary Guard commander warned the United States. and Israel to avoid miscalculation, saying Iran is "more ready than ever" as the US deploys troops. Warships, including the USS Abraham Lincoln, were sent to the Middle East. The move comes after a violent crackdown on anti-government protests that began on December 28 after the rial collapsed, killing thousands and arresting over 40,000 people, with human rights groups verifying evidence of mass killings. U.S. President Donald Trump set red lines, threatening severe military action if peaceful protesters are killed or mass executions take place, while European airlines canceled flights due to regional unrest. Iran's top prosecutor denied allegations of mass executions, and while protests have subsided, the death toll continues to rise.