UKRAINE-RUSSIA-CRISIS-POLITICS-SLAVYANSK

Men wearing military fatigues sit by a Russian flag and a white flag reading "People's volunteer corps of Donetsk" as they ride on an armoured personnel carrier (APC) seized to the Ukrainian army in the eastern Ukrainian city of Slavyansk on April 16, 2014. Russian leader Vladimir Putin warned that Ukraine is on the verge of civil war, the Kremlin said on April 16, after the Kiev government sent in troops against pro-Moscow separatists in the east of the country. AFP PHOTO / GENYA SAVILOV (Photo by GENYA SAVILOV / AFP) (Photo by GENYA SAVILOV/AFP via Getty Images)