How social media transformed pro-Russian nostalgia into violence in Ukraine

Description

When Ukraine’s pro-Russian president, Victor Yanukovych, was ousted in late February, thousands of outraged and fearful people in southern and eastern cities took to the streets to demonstrate against the new pro-European government that had swept to power. When Crimea was annexed by Russia shortly afterwards, there were sympathetic popular uprisingsin a number of cities in other parts of Ukraine by people variously demanding federalisation or reunion with Russia.