poland seemed to be as anti east-bloc in the 1930's as it does now.
The establishment of a Polish state can be traced back to 966, when Mieszko I, ruler of a territory roughly coextensive with that of present-day Poland, converted to Christianity. The Kingdom of Poland was founded in 1025, and in 1569 it cemented a longstanding political association with the Grand Duchy of Lithuania by signing the Union of Lublin. This union formed the Polish–Lithuanian Commonwealth, one of the largest and most populous countries of 16th and 17th-century Europe. The Commonwealth ceased to exist in the years 1772–1795, when its territory was partitioned among Prussia, the Russian Empire, and Austria. Poland regained its independence (as the Second Polish Republic) at the end of World War I, in 1918.
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 withGermany in November 1918, Poland regained its independence as the Second Polish Republic.
Immediately after regaining independence in 1918, Poland was faced with a war with the new Bolshevik Russia. The Polish-Soviet War (February 1919 – March 1921) was an armed conflict that pitted Soviet Russia and Soviet Ukraine against the Second Polish Republic and the Ukrainian People's Republic over the control of an area equivalent to today's Ukraine and parts of modern-day Belarus. 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 Lenin to rethink his objective moving the Red Army West and of achieving global socialism. Nowadays the event is often referred to as the "Miracle at the Vistula". For the next two decades, Poland was seen by the Soviet Union as an enemy.
During this period, Poland successfully managed to fuse the territories of the three former partitioning powers into a cohesive nation state. The inter-war period heralded in a new era of Polish politics. Whilst Polish political activists had faced heavy censorship in the decades up until the First World War, the country now found itself trying to establish a new political tradition. For this reason, many exiled Polish activists, such as Ignacy Paderewski (who would later become Prime Minister) returned home to help; a significant number of them then went on to take key positions in the newly formed political and governmental structures.
The 1926 May Coup of Józef Piłsudski turned rule of the Second Polish Republic over to the Sanacja movement. By the 1930s Poland had become increasingly authoritarian; a number of 'undesirable' political parties, such as the Polish Communists, had been banned and following Piłsudski's death, the regime, unable to appoint a new leader, began to show its inherent internal weaknesses and unwillingness to cooperate in any way with other political parties. As result of the Munich Agreement of 1 October 1938, Poland invaded and occupied the Zaolzie Region of Czechoslovakia.
Eventually a secret agreement with Nazi Germany allowed the Soviet Union to successfully invade and destroy the Second Republic in 1939. The following years of Soviet repressions of Polish citizens, especially the brutal mass murder in 1940, known as the Katyn massacre, of more than 20,000 Polish officers and its subsequent Soviet denial for 50 years, became additional events with lasting repercussions on the Polish–Russian relations.
Until World War II Poland was a religiously diverse society, in which substantial Jewish, Christian Orthodox, Protestant and Roman Catholic groups coexisted. In the Second Polish Republic, Roman Catholic was the dominant religion, declared by about 65% of the Polish citizens, followed by other Christian denominations, and about 3% of Judaism believers. As a result of the Holocaust and the post–World War II flight and expulsion of German and Ukrainian populations, Poland has become overwhelmingly Roman Catholic. In 2007, 88.4% of the population belonged to the Catholic Church. Though rates of religious observance are lower, at 52% or 51% of the Polish Catholics, Poland remains one of the most devoutly religious countries in Europe.
the russian ambassador was complaining about poland's lack of overt or covert commitment against nazi germany.
[keep in mind that Poland prior to WW2 lay much further to the east than it currently does]
On 1 September 1939, Germany invaded Poland. The German invasion began one week after the signing of the Molotov–Ribbentrop Pact. By 17 September, the Polish defence was broken by the Germans. The only hope for the Poles was to retreat and reorganize along the Romanian Bridgehead. However, these plans were rendered obsolete nearly overnight, when on September 17 the over 800,000-strong Soviet Red Army entered and created the Belarussian and Ukrainian fronts after invading the eastern regions of Poland in violation of the Riga Peace Treaty, the Soviet-Polish Non-Aggression Pact, and other international treaties, both bilateral and multilateral. Soviet diplomacy claimed that they were "protecting the Ukrainian and Belarusian minorities of eastern Poland since the Polish government had abandoned the country and the Polish state ceased to exist". The Soviet invasion had commenced on 17 September following the Molotov-Tōgō agreement that terminated the Russian and Japanese hostilities in the east on 16 September. The Red Army advanced quickly and met little resistance, as Polish forces facing them were under orders not to engage the Soviets.
On 6 October, German and Soviet forces gained full control over Poland. The success of the invasion marked the end of the Second Polish Republic, though Poland never formally surrendered. On 8 October, after an initial period of military administration, Germany directly annexed western Poland and the former Free City of Danzig and placed the remaining block of territory under the administration of the newly established General Government. The Soviet Union incorporated its newly acquired areas into its constituent Belarusian and Ukrainian republics, and immediately started a campaign of sovietization. In the aftermath of the invasion, a collective of underground resistance organizations formed the Polish Underground State within the territory of the former Polish state. Many of the military exiles that managed to escape Poland subsequently joined the Polish Armed Forces in the West, an armed force loyal to the Polish government in exile.
As early as 19 September, head of the NKVD Lavrentiy Beria ordered the secret police to create the Administration for Affairs of Prisoners of War and Internees to manage Polish prisoners. The NKVD took custody of Polish prisoners from the Red Army, and proceeded to organise a network of reception centers and transit camps and arrange rail transport to prisoner-of-war camps in the western USSR.
About 250,000 to 454,700 Polish soldiers and policemen were captured and interned by the Soviet authorities. Some were freed or escaped quickly, but 125,000 were imprisoned in camps run by the NKVD. Of these, 42,400 soldiers, mostly of Ukrainian and Belarusian ethnicity serving in the Polish army who lived in the former Polish territories now annexed by the Soviet Union, were released in October. The 43,000 soldiers born in western Poland, then under German control, were transferred to the Germans; in turn the Soviets received 13,575 Polish prisoners from the Germans. [So that leaves about 71000 with the NKVD]
ON 19 November 1939, the NKVD had about 40,000 Polish POWs: about 8,000–8,500 officers and warrant officers, 6,000–6,500 police officers, and 25,000 soldiers and non-commissioned officers who were still being held as POWs.
Since Poland's conscription system required every nonexempt university graduate to become a military reserve officer, the NKVD was able to round up a significant portion of the Polish educated class. In December, a wave of arrests resulted in the imprisonment of additional Polish officers. Ivan Serov reported to Lavrentiy Beria on 3 December that "in all, 1,057 former officers of the Polish Army had been arrested". The 25,000 soldiers and non-commissioned officers were assigned to forced labor (road construction, heavy metallurgy).
Once at the camps, from October 1939 to February 1940, the Poles were subjected to lengthy interrogations and constant political agitation by NKVD officers such as Vasily Zarubin. The prisoners assumed that they would be released soon, but the interviews were in effect a selection process to determine who would live and who would die. According to NKVD reports, if the prisoners could not be induced to adopt a pro-Soviet attitude, they were declared "hardened and uncompromising enemies of Soviet authority".
On 5 March 1940, pursuant to a note to Joseph Stalin from Beria, six members of the Soviet Politburo—Stalin, Vyacheslav Molotov, Lazar Kaganovich, Kliment Voroshilov, Anastas Mikoyan, and Mikhail Kalinin—signed an order to execute 25,700 Polish "nationalists and counterrevolutionaries" kept at camps and prisons in occupied western Ukraine and Belarus.
The number of victims is estimated at about 22,000, with a lower limit of confirmed dead of 21,768. According to Soviet documents declassified in 1990, 21,857 Polish internees and prisoners were executed after 3 April 1940: 14,552 prisoners of war (most or all of them from the three camps) and 7,305 prisoners in western parts of the Byelorussian and Ukrainian SSRs. Of them 4,421 were from Kozelsk, 3,820 from Starobelsk, 6,311 from Ostashkov, and 7,305 from Byelorussian and Ukrainian prisons. The head of the NKVD POW department, Maj. General P. K. Soprunenko, organized "selections" of Polish officers to be massacred at Katyn and elsewhere.
Those who died at Katyn included an admiral, two generals, 24 colonels, 79 lieutenant colonels, 258 majors, 654 captains, 17 naval captains, 3,420 non-commissioned officers, seven chaplains, three landowners, a prince, 43 officials, 85 privates, 131 refugees, 20 university professors, 300 physicians; several hundred lawyers, engineers, and teachers; and more than 100 writers and journalists as well as about 200 pilots. In all, the NKVD executed almost half the Polish officer corps
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Up to 99% of the remaining prisoners were subsequently murdered. People from the Kozelsk camp were executed in the Katyn forest; people from the Starobelsk camp were murdered in the inner NKVD prison of Kharkiv and the bodies were buried near the village of Piatykhatky; and police officers from the Ostashkov camp were murdered in the internal NKVD prison of Kalinin (Tver) and buried in Mednoye
According to Tadeusz Piotrowski, "during the war and after 1944, 570,387 Polish citizens had been subjected to some form of Soviet political repression. According to estimates by the Institute of National Remembrance (IPN), roughly 320,000 Polish citizens were deported to the Soviet Union (this figure is questioned by some other historians, who hold to older estimates of about 700,000–1,000,000). IPN estimates the number of Polish citizens who died under Soviet rule during World War II at 150,000 (a revision of older estimates of up to 500,000). Of the group of 12,000 Poles sent to Dalstroy camp (near Kolyma) in 1940–1941, mostly POWs, only 583 men survived; they were released in 1942 to join the Polish Armed Forces in the East.