# Polish-Ukrainian historical commemorations > Live situation record from CLSTR: https://clstr.news/situations/polish-ukrainian-historical-commemorations > Updated: 2026-08-15T21:12:16.000Z. Sources: 9. Developments: 2. The 1920 Battle of Warsaw, a decisive engagement during the Polish-Soviet War, is recognized as a victory that preserved Polish independence and halted the spread of Bolshevism into Europe. The conflict involved geopolitical cooperation between Poland and the Ukrainian People's Republic, including a joint entry into Kyiv in May 1920. Anniversaries of the battle are marked by commemorations highlighting historical cooperation between Poland and Ukraine. Initiatives such as the ‘Flame of Brotherhood’ involve Polish and Ukrainian scouts working together to identify and clean the graves of soldiers from the Ukrainian People's Republic located in Poland. Ceremonies have been held in locations like Wrocław to honor specific officers who participated in the defense of the region. On the anniversary of the battle and Polish Armed Forces Day, Ukrainian President Volodymyr Zelenskyy issued congratulations to Poland. Zelenskyy highlighted the historical role of Ukrainian soldiers who fought alongside Polish forces 106 years ago to stop the Bolshevik offensive from advancing into Western Europe. This diplomatic recognition underscores the historical alliance between the forces of Józef Piłsudski and Symon Petlura, noting the participation of Ukrainian units in significant operations such as the defense of Zamość. ## Timeline ### 2026-08-15: Polish-Soviet War and the 1920 Battle of Warsaw The Polish-Soviet War and the 1920 Battle of Warsaw were decisive in securing Polish independence and preventing the spread of Bolshevism across Europe. 2 sources. https://clstr.news/cluster/polish-soviet-war-and-the-1920-battle-of-warsaw ### 2026-08-15: Zelenskyy congratulates Poland on Battle of Warsaw anniversary President Volodymyr Zelenskyy congratulated Poland on the anniversary of the Battle of Warsaw, noting the historical contribution of Ukrainian soldiers in stopping the Bolshevik advance 106 years ago. 7 sources. https://clstr.news/cluster/poland-and-ukraine-commemorate-battle-of-warsaw-anniversary --- Cite as: Polish-Ukrainian historical commemorations. CLSTR, https://clstr.news/situations/polish-ukrainian-historical-commemorations