In the context of the Ukrainian crisis, Western countries have significantly intensified their anti-Russian policy along with its collective development. The article examines the role of the UK in the process of multilateral formation of the collective Western anti-Russian policy. The theoretical basis of the study is the spatial approach and organisational theory. Based on the analysis of institutional-identitarian dynamics using the qualitative and quantitative content analysis, the British foreign policy identity, the transnational identity of the political space of the West, and their mutual influence are explored. It is concluded that the anti-Russian aspects of the foreign policy narratives of the UK and the collective West generally coincide. However, there are features in the corresponding discourse in the UK, which bring it closer to the discourse of the countries of the Anglosphere. International institutions and practices with the participation of the UK are considered, their compliance with anti-Russian narratives is substantiated. The article reveals the directions of British foreign policy that have the most influence on the collective policy of the West. The study focuses on cases where the British leadership was the first to take certain anti-Russian measures, encouraging other countries to follow its example. The reverse impact of international institutions and practices on the British foreign policy identity was analysed. It is argued that the UK has a significant influence on the formation of a collective anti-Russian policy, and is one of the leaders of the West in this context.