According to estimates by Soufan Center, more than 17,000 fighters from 55 countries have joined the conflict in Ukraine since 2014.
Russia's War Against Ukraine
RFE/RL: Militants in Ukraine – where do they come from? (Infographics)
People cross the river over the destroyed bridge from the Stanytsia Luhanska village to the separatists-controlled territory of Luhansk Oblast, eastern Ukraine, on August 1, 2019.
