The deportations started with Poles from Belarus, Ukraine and European Russia (see Poles in the former Soviet Union) 1932–1936. Koreans in the Russian Far East were deported in 1937 (see Deportation of Koreans in the Soviet Union). After the Soviet invasion of Poland (17 September 1939) following the corresponding German invasion (1 September 1939) that marked the start of World War II in Europe, the Soviet Union annexed eastern parts (the so-called ""Kresy"") of the Second Polish Republic. During 1939–1941 the Soviet regime deported 1.45 million people inhabitants of this area, of whom 63% were Poles and 7% were Jews. Similar events followed in the Baltic states of Estonia, Latvia, and Lithuania following their incorporation into the Soviet union in 1940. More than 200,000 people are estimated to have been deported from the Baltic in 1940–1953. 10% of the entire adult Baltic population was deported or sent to labor camps. (See June deportation, Operation Priboi, Soviet deportations from Estonia.) Volga Germans and seven (overwhelmingly Turkic or non-Slavic) nationalities of the Crimea and the northern Caucasus were deported: the Crimean Tatars, Kalmyks, Chechens, Ingush, Balkars, Karachays, and Meskhetian Turks. All Crimean Tatars were deported "en masse" in a form of collective punishment.