The string of developments capped a day of mass mourning over Iranian Maj. Gen. Qassem Soleimani, killed in a U.S. drone strike in Baghdad on Friday. Hundreds of thousands of people flooded the streets in the cities of Ahvaz and Mashhad to walk alongside the casket of Soleimani, who was the architect of Iran’s proxy wars across the Mideast and was blamed for the deaths of hundreds of Americans in suicide bombings and other attacks.