Russia vs Poland. 1000-Year Duel. Part 2 | RT Documentary

Hitler's invasion of Poland marked the start of World War II. Why did this happen and how did Europe descend into its darkest chapters? The documentary looks back at the origins of the First and Second World Wars and the interwar period. Where in Europe did the first concentration camps appear? How did Poland split into pro-Russian and pro-German factions during World War I? Why did Warsaw refuse to sign an anti-Nazi pact with Moscow? Historians suggest that this is the inevitable outcome of the thousand-year enmity between Poland and Russia. However, the history of their relationship is more complex than it appears. What secrets does this challenging period in European history hold? Discover the answers in the new documentary.