The horrific Russian bombing of a Ukrainian maternity hospital is reminiscent of the bloody war Moscow has waged in Syria since 2015, activists have said. The strike on the clinic in the besieged city of Mariupol killed three people, including one child, with 17 injured, leading to an outpouring of anger over Russia’s blatant targeting of civilian infrastructure. Ukrainian President Volodymyr Zelensky called the bombing an “atrocity” and a “war crime” and appealed to NATO to impose a no-fly zone over Ukraine. “How much longer will the world be an accomplice ignoring terror? Close the sky right…