On April 17, 1946, the Kaliningrad Oblast — the northern portion of the former German province of East Prussia—was annexed by the Soviet Union and made part of the Russian SFSR. COUNT 3
QSN1 On what date was Kaliningrad Oblast annexed? ANS1 April 17, 1946 QSN2 What province of Germany did Kaliningrad Oblast form a part of? ANS2 East Prussia QSN3 What administrative division did Kaliningrad Oblast become a part of? ANS3 the Russian SFSR