Polish People's Republic
The Polish People's Republic (, ) was a state in Central Europe that existed from 1947 to 1989, and the predecessor of the modern democratic Republic of Poland. With a population of approximately 37.9 million inhabitants near the end of its existence, it was the most populous state of the Eastern Bloc after the Soviet Union. Having a unitary Marxist–Leninist communist government, it was also one of the main signatories of the Warsaw Pact. The official capital since 1947 and largest city was Warsaw, followed by industrial Łódź and cultural Kraków.
Poland
During World War I, all the Allies agreed on the reconstitution of Poland that United States President Woodrow Wilson proclaimed in Point 13 of his Fourteen Points. A total of 2 million Polish troops fought with the armies of the three occupying powers, and 450,000 died. Shortly after the armistice with Germany in November 1918, Poland regained its independence as the Second Polish Republic ("II Rzeczpospolita Polska"). It reaffirmed its independence after a series of military conflicts, the most notable being the Polish–Soviet War (1919–21) when Poland inflicted a crushing defeat on the Red Army at the Battle of Warsaw, an event which is considered to have halted the advance of Communism into Europe and forced Vladimir Lenin to rethink his objective of achieving global socialism. The event is often referred to as the "Miracle at the Vistula".