Last week, pro-Russia forces took over the police headquarters in Slovyansk, a city in Eastern Ukraine, marking the latest expansion of the self-proclaimed "People's Republic of Donetsk." VICE News correspondent Simon Ostrovsky rushed to the scene to verify whether or not Russian Special Forces had taken over the building, as was rumored, but found that it appeared to be the work of locals.As the situation escalates in Eastern Ukraine, a pattern has emerged in which buildings are stormed and occupied at night, while crowds gather outside during the day to prevent anyone from getting through. The situation in Slovyansk is different because the whole city seems to be guarded by pro-Russia forces. Which city will be next?