The answer to the question: How many cities of the country that was a founding member of the Union of Soviet Socialist Republics were destroyed in World War II? is inside the article: A part of Belarus under Russian rule emerged as the Byelorussian Soviet Socialist Republic (Byelorussian SSR) in 1919. Soon thereafter it merged to form the Lithuanian-Byelorussian SSR. The contested lands were divided between Poland and the Soviet Union after the war ended in 1921, and the Byelorussian SSR became a founding member of the Union of Soviet Socialist Republics in 1922. The western part of modern Belarus remained part of Poland.In the 1920s and 1930s, Soviet agricultural and economic policies, including collectivization and five-year plans for the national economy, led to famine and political repression. In 1939, Nazi Germany and the Soviet Union invaded and occupied Poland, marking the beginning of World War II. The Soviets invaded and annexed much of eastern Poland, which had been part of the country since the Peace of Riga two decades earlier. Much of the northern section of this area was added to the Byelorussian SSR, and now constitutes West Belarus. The Soviet-controlled Byelorussian People's Council officially took control of the territories, whose populations consisted of a mixture of Poles, Ukrainians, Belarusians and Jews, on 28 October 1939 in Białystok. Nazi Germany invaded the Soviet Union in 1941. The Brest Fortress, which had been annexed in 1939, at this time was subjected to one of the most destructive onslaughts that happened during the war. Statistically, the Byelorussian SSR was the hardest-hit Soviet republic in World War II; it remained in Nazi hands until 1944. During that time, Germany destroyed 209 out of 290 cities in the republic, 85% of the republic's industry, and more than one million buildings. The Nazi Generalplan Ost called for the extermination, expulsion or enslavement of most or all Belarusians for the purpose of providing more living space in the East for Germans.Casualties were estimated to be between 2 and 3 million (about a quarter to one-third of the total population), while the Jewish population of Belarus was devastated during the Holocaust and never..., can you guess it ?
A:
209