It's been described as a frozen conflict but Ukraine's civil war has suddenly heated up. So why now? Some point to the flare-up following the first phone call between Donald Trump and Vladimir Putin. Is Moscow testing the West's resolve, or - as pro-Kremlin media suggest - did Kiev trigger the fighting to rally support in Washington?
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A truck drives through the Alataw Pass Comprehensive Bonded Zone in northwest China’s Xinjiang Uygur Autonomous Region. Located in the Mongolian Autonomous Prefecture of Bortala in Xinjiang, the Alataw Pass borders Kazakhstan. (Getty Images)