One day after Rex Tillerson’s visit to Saudi Arabia, which came as part of the US Secretary of State’s concerted efforts to curb Iran’s rapidly expanding influence in the region, including boosting the clout of Sunni-ruled Saudi Arabia in Shiite-majority Iraq, and urging Iranian militias to leave Iraq as the “fighting against ISIS comes to an end”, Tillerson made an unannounced visit to Afghanistan’s capital Kabul, where he is in discussions wi