Ukrainian President Petro Poroshenko has warned that there are 9,000 Russian troops in the rebel-controlled area of eastern Ukraine and warned the country must be on alert for a large-scale attack.
Russia's War Against Ukraine
Voice of America: Poroshenko says Ukraine faces ‘colossal’ threat in eastern Ukraine

Ukrainian President Petro Poroshenko gestures as he delivers his speech to deputies during his annual address to Parliament in Kyiv on June 4.