President Donald Trump has ordered stepped-up military operations against Islamic State and delegated more authority to his generals, but without a comprehensive Syria strategy, his approach risks further confrontation with Syria, Iran and even Russia, according to U.S. officials and analysts....

Russia, Iran and the United States are drawing new red lines for each other in Syria, with Moscow warning Washington on Monday it would treat any U.S.-led coalition planes in its area of operations as potential targets after the U.S. air force downed a Syrian jet. Tensions escalated on...

Iran's Revolutionary Guards Monday said missiles it fired into Syria had successfully hit ISIS targets in retaliation for Tehran attacks claimed by the jihadists earlier this month. "Based on credible information, the missile operation against Daesh has been successful," Revolutionary Guards...

Iran fired missiles on Sunday into eastern Syria, aiming at the bases of militant groups it holds responsible for attacks in Tehran which left 18 dead last week, Iran's Tasnim news agency reported. Iranian Revolutionary Guards launched the mid-range ground-to-ground missiles from western...