analysisAnalysis image of David Stern David Stern BBC News, Donetsk Ukraine's authorities had said they would respond militarily to any Russian incursion into the east of their country. Now, they are accusing Moscow of an "act of aggression" and orchestrating, if not actually carrying out, the seizure of government buildings. The question then arises: Does this mean war? Or can the government continue to carry out "anti-terrorist operations" and somehow manage to prevent this growing insurrection from exploding into a all-out conflict? Large parts of eastern Ukraine are slipping out of Kiev's control. More and more police stations and government buildings are falling to unidentified gunmen, who carry Russian weapons and look very much like the Kremlin forces who took Crimea. Ukraine's government appears that it does not have a choice whether to use

Analysis

David SternBBC News, Donetsk

Ukraine's authorities had said they would respond militarily to any Russian incursion into the east of their country. Now, they are accusing Moscow of an "act of aggression" and orchestrating, if not actually carrying out, the seizure of government buildings.

The question then arises: Does this mean war? Or can the government continue to carry out "anti-terrorist operations" and somehow manage to prevent this growing insurrection from exploding into a all-out conflict?

Large parts of eastern Ukraine are slipping out of Kiev's control. More and more police stations and government buildings are falling to unidentified gunmen, who carry Russian weapons and look very much like the Kremlin forces who took Crimea. Ukraine's government appears that it does not have a choice whether to use  bbc