US Secretary of the Navy John Phelan will leave office “immediately,” the Pentagon announced Wednesday, without providing an explanation for the sudden exit. Phelan’s departure follows the removal of top US Army officer General Randy George and two other senior officers earlier this month, at a time when the United States is locked in a war with Iran that still remains unresolved. Phelan “is departing the administration, effective immediately”, Pentagon spokesman Sean Parnell said in a statement...