Iran welcomes the departure of U.S. forces from its eastern neighbor but could have concerns about the potential reemergence of Sunni-Shia tensions with the Taliban back in power.

During June’s presidential election in Iran, many Westerners strongly hoped for a Hassan Rouhani victory. Rouhani, the incumbent president, was a “moderate,” the argument went, and during the campaig…

An explosion has caused heavy damage to an Iranian nuclear facility just as the country approaches a bold new energy partnership with China, but Iran shows no signs of slowing down its nuclear progra…