Less than two weeks after President Donald Trump’s inauguration, full-blown war returned to eastern Ukraine.

Beginning Jan. 29, rockets rained down on residential and military positions along the front line, killing civilians and soldiers alike. One 60-year-old woman was killed in separatist shelling as she walked from her home to a nearby market; a 24-year-old medic was killed when a shell exploded next to the ambulance she was driving. The fighting decimated local water and electricity infrastructure, spawning a renewed humanitarian crisis in the region that could affect hundreds of thousands of people as temperatures dip below 0 degrees Fahrenheit.

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