Józef Piłsudski, an important interwar Polish politician, significantly responsible for Poland's regained independence in the aftermath of World War I, planner of the 1919 Polish coup d'état attempt in Lithuania and orchestrator of the Żeligowski's Mutiny that brought the disputed Vilnius Region into Poland, often drew attention to his Lithuanian ancestry, and briefly pursued the re-creation of the old Commonwealth. In light of the other great plan for post-World War I order, the Bolshevik intention to spread the communist revolution through the Red Army, his goal of re-constituting the Commonwealth "could only be achieved by war." Poland was not alone in its newfound opportunities and troubles. With the collapse of Russian and German occupying authorities, virtually all of the newly independent neighbours began fighting over borders: Romania fought with Hungary over Transylvania, Yugoslavia with Italy over Rijeka, Poland with Czechoslovakia over Cieszyn Silesia, with Germany over Poznań, with Ukraine over Eastern Galicia, with Lithuania over Vilnius Region. Spreading Communist influences resulted in Communist revolutions in Munich, Berlin, Budapest and Prešov, and finally, in the Polish-Soviet War. Speaking of that period, Winston Churchill commented: "The war of giants has ended, the wars of the pygmies began." Eventually, the bad blood created but those conflicts, and the staunch opposition by (primarily) Polish and Lithuanian nationalists towards the federation idea, and finally the Peace of Riga, in which Poland abandoned the Belarusian and Ukrainian independence cause, would doom the idea of the Międzymorze federation. The failure to create a strong counterbalance to Germany and Soviet Union, such as Międzymorze, which Piłsudski saw as a counterweight to Russian and German imperialism, according to some historians, doomed those countries to of World War II.