KRAMATORSK, Ukraine — While Ukraine's leader heads to the White House , civilians in the country’s east are streaming out of front-line towns under mounting threat from Russian forces . At the main station in the stronghold city of Kramatorsk, sisters Valentina and Nadia, both in their 70s, wait for a train to escape Russian troops approaching their home in a surrounding area. Neither trusts President Donald Trump
What is Ukraine's Donbas region, and why is it so important to Putin in Trump talks?

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