16 Ukrainian servicemen were killed by pro-Russian insurgents near Volnovakha town in Donetsk Oblast on May 22.
© Anastasia Vlasova
Editor's Note: On May 11, the People's Republics of Donetsk and Luhansk declared their independence from Ukraine after holding dubious separatist referendums on the same day. Since then, the Ukrainian military has attempted to wrestle control of Luhansk and Donetsk Oblasts from Kremlin-backed rebels. The Ukrainian government in Kyiv is attempting to stablilize its eastern regions in anticipation of the May 25 presidential election, the country's first since the EuroMaidan Revolution toppled former President Viktor Yanukovych.