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There were also persistent tensions between Russia and large parts of the rest of Europe, over issues as diverse as cyberattacks, Ukraine, the response to Covid-19, and the poisoning of Russian opposition leader Alexei Navalny. Elsewhere in Europe, tensions persisted in largely inactive but unresolved conflicts in the post-Soviet space, the Western Balkans and Cyprus. Two armed conflicts were active in Europe in 2020: the interstate border conflict between Armenia and Azerbaijan for control of Nagorno-Karabakh, which escalated into a high-intensity conflict during the year, and the ongoing low-intensity internationalized, subnational armed conflict in Ukraine.
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