Policemen stand guard outside the regional state administration building in the southern Ukrainain port city of Odessa on May 5, 2014, expecting a protest rally of pro-Russian activists. A blaze at a trade union building in Odessa on May 2 left 42 people dead -- most of them pro-Russian militants -- after running battles with pro-Kiev protesters. Increasing tension in the southern port city of Odessa threatened a new front in the Ukrainian government's battle against pro-Moscow militants, with an expanded military operation under way in the east against gunmen holding more than a dozen towns. AFP PHOTO/ ANATOLII STEPANOV        (Photo credit should read ANATOLII STEPANOV/AFP via Getty Images)