President Donald Trump on Wednesday terminated a ceasefire with Iran after Iranian forces attacked vessels in the Strait of Hormuz, leading the U.S. military to strike over 150 Iranian targets. Vice President JD Vance had publicly advocated for the temporary accord, signed in mid-June, which was meant to give both sides 60 days to negotiate a lasting agreement. During a June briefing, Vance addressed critics who predicted Tehran would not change its conduct, arguing that if those critics were correct, Iran would simply forfeit any gains from the arrangement—and that the effort remained worth making. The collapse of that short-lived truce underscores the volatile state of U.S.-Iran relations.