An Ukrainian serviceman jumps from an armored personnel carrier driving near front line position in the Luhansk area, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe, the urgent efforts coming as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda)

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