Relying on one crop to feed your whole family comes with the knowledge of if your potatoes don’t grow then you will be left with nothing. Even so, Europe had little more than potatoes so didn’t have a choice
Answer:Basically all the Soviets wanted to drive out all of the people of Berlin who weren't Russians. The Soviets created a partial blockade where they closed off all entrances into and out of the city (roads, highways, etc).