A pro-Russian fighter from the "Vostok" (East) battalion stands guard at a checkpoint in the eastern Ukrainian city of Donetsk July 6, 2014. Ukrainian forces routed pro-Russian rebels in a flashpoint area of eastern Ukraine on Saturday and raised the country's blue and yellow flag again over what had for months been the separatist redoubt of Slaviansk. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY)