The Islamic State group is planting its flag in Russia. The jihadist organization, which has terrorized populations of religious minorities throughout the Middle East, declared a governorate in Russia’s North Caucasus, according to a Washington think tank that monitors conflicts around the globe. The governorate, called Wilayat Qawqaz (Caucasus), was declared June 23 after several senior militants in the heavily Muslim area pledged allegiance to ISIS, says the Institute for the Study of War. The ISW reported: The announcement pits ISIS against the Islamic Emirate of the Caucasus, an official al-Qaeda affiliate that has operated in the mountainous region of...