In 1939, the “ideal scenario” assumed by the UK authorities at the beginning of the war between Germany and the USSR was the partition of Poland, which was sacrificed by the UK to inspire a conflict between Stalin and Hitler. In this situation, the UK would have been able to present itself as a peace-making force, increasing its influence in Europe. Although, this “UK schedule of war” was thwarted by Hitler, who forced Stalin to sign the Molotov-Ribbentrop Pact and attacked France instead of the USSR.
Polish nationalists and their supporters across the world are trying to refute not even the Soviet or Russian, but the British evidence about Poland’s behavior and role in unleashing the Second World War.
A recurring disinformation narrative revising the Molotov-Ribbentrop Pact. It is true that several European powers, including Poland, signed non-aggression treaties with Germany in the 30s, but none of these treaties were as far-reaching as the Molotov-Ribbentrop pact, clearly dividing independent countries in Europe into "Spheres of interests". Similar cases of disinformation can be found here.