Russia's military tactics in Syria differ so much from those of the U.S. and its allies that it could be impossible to operate together, U.S. and European officials said, complicating the sputtering effort to forge a partnership between Moscow and the West against Islamic State.
Wall Street Journal: Russia, West diverge on tactics in Syria
A female fighter from the Kurdish People Protection Unit looks at destruction in the Syrian town of Ain Issi, some 50 kilometres north of Raqqa.
