Why some EU countries in the east are still pro-Russia
South-East Europe Countries Urge Citizens to Leave Ukraine
Why Does Eastern Germany Love Putin So Much? – Foreign Policy
Everything you need to know about the 2014 Ukraine crisis - Vox
Ukraine war follows decades of warnings that NATO expansion into Eastern Europe could provoke Russia
The rise and fall of geopolitical Europe – POLITICO
Russia's Hostile Measures in Europe: Understanding the Threat
Religious Belief and National Belonging in Central and Eastern Europe
Eastern Bloc - Wikipedia
How Russia's Invasion of Ukraine Violates International Law
Things to know about Russia and sanctions