Not long ago, Qasem Soleimani, head of Iran’s elite troops known as the Quds Force, was one of the spy world’s most covert operators. Now, his smiling face is everywhere: arm-in-arm with Iraqi officials on TV, rubbing shoulders with the militiamen fighting Islamic State across social media, and in public meetings with Iraqi families liberated by Iran’s allies. Mr. Soleimani surfaced this week in Samarra, Iraq, to bolster the morale of Iraqi troops and militiamen embarking on a fight to free the nearby city of Tikrit, now controlled by Islamic State, also known as ISIS or ISIL. Mr. Soleimani’s high profile underscores Iran’s transformation in the way it does business in the […]