Iraqi forces are closing in on Tikrit and could be days away from retaking the city from ISIS fighters just over a week after launching a major offensive. In the past three days, forces have progressed roughly 50 miles down one road toward the city and are now about a mile from its center. The operation is part of a wide-scale offensive to retake Tikrit and Salahuddin province ordered by Iraqi Prime Minister Haider al-Abadi on March 1. Hadi Al-Amiri, the leader of the predominantly Shiite paramilitary force Hashd Al-Shaabi, said Monday he is confident his men can crush ISIS...