Poles mark 75 years since Soviets 'stabbed us in the back' Poles on Wednesday marked 75 years since the Soviet Union invaded, after plotting with Nazi Germany to wipe Poland off the map during World War II. Polish veteran Andrzej Kwiatkowski, who as a teenager joined the doomed Polish resistance to fight the Nazis and the Soviets, is worried history could repeat itself amid heightened tensions between Warsaw and Moscow. IMAGES AND SOUNDBITES