Prometheism or Prometheanism (Polish: "Prometeizm") was a political project initiated by Poland's Józef Piłsudski. Its aim was to weaken the Russian Empire and its successor states, including the Soviet Union, by supporting nationalist independence movements among the major non-Russian peoples that lived within the borders of Russia and the Soviet Union.
Between the World Wars, Prometheism and Piłsudski's other concept of an "Intermarum federation" constituted two complementary geopolitical strategies for him and some of his political heirs.
Read more about Prometheism: Sources of Prometheism, Principles, First Period (1918–21), Second Period (1921–23), Third Period (1923–26), Fourth Period (1926–32), Fifth Period (1933–39), World War II and Since