The United States could intensify sanctions against Russia if the Kremlin continues to destabilize eastern Ukraine, a senior U.S. government official said.
Russia's War Against Ukraine
Reuters: US hasn’t exhausted toolkit on Russia sanctions – energy envoy
Pro-Russian separatists take position near the eastern Ukrainian city of Uglegorsk, 6 kms southwest of Debaltseve, on Feb. 18, 2015.
