The Commonwealth collapsed in 1795, and Poland's territory was partitioned among the Kingdom of Prussia, the Russian Empire, and Austria. Poland regained its independence as the Second Polish Republic in 1918, after World War I, but two decades later it was occupied by Nazi Germany and the Soviet Union at the outbreak of World War II in September 1939. Poland lost over six million citizens in the war and emerged several years later as the People's Republic of Poland under Soviet influence.
During the Revolutions of 1989, communist rule was overthrown, and soon after Poland became what is constitutionally known as the "Third Polish Republic". Poland is a unitary state, made up of sixteen Voivodeships (Polish: Województwo), Poland is a member of the European Union, NATO, the United Nations, the World Trade Organization, and the Organisation for Economic Co-operation and Development (OECD).
