A pro-Russian rebel aims his anti-tank rifle between blocks of concrete at a frontline rebel position near the eastern Ukrainian village of Semenivka May 16, 2014. REUTERS/Yannis Behrakis (UKRAINE - ... more 
A pro-Russian rebel aims his anti-tank rifle between blocks of concrete at a frontline rebel position near the eastern Ukrainian village of Semenivka May 16, 2014. REUTERS/Yannis Behrakis (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) less 
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Reuters | Photo By YANNIS BEHRAKIS / REUTERS
Fri, May 16, 2014 4:27 PM EDT