The event on Tuesday was organised by the European Conservatives and Reformists (ECR), a centre-right political grouping in the European Parliament.
Polish conservative MEPs Anna Fotyga and Kosma Złotowski were the main coordinators.
“For many who have experienced Russian oppression in the past, the war in Ukraine can only end when the Russian Federation is completely repulsed and defeated,” the organisers said on their website.
The ECR group believes that "in order to finally remove the threat to peace that the Russian Federation still poses, the international community should seek a re-federalisation of the Russian state."
Radio Poland's Michał Owczarek has this report.
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