Soviet Troops enter Sofia, Bulgaria on September 9th, 1944
Soviet entry into Bulgaria is a subject of a lot of controversy. While a member of Axis (until late August 1944) Bulgaria didn't contribute much to the fighting. With an exception of an air force, Bulgarian military didn't fight against Western allies to say nothing of sending troops to the Eastern Front. Yet, at the same time Bulgarian territory and its infrastructure was used by the Nazi Germany for logistics purposes. The Soviets seized on the latter, accused the Bulgarian government of false neutrality and entered the country a few days after declaring war on Bulgaria on the heels of the communist coup d'etat. Soviet troops didn't encounter any resistance, and less than a year after the war in Europe has ended, Bulgaria was in the throes of communist totalitarianism.
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