It was bad because peoples' lives were lost during the border wars.
That is why, hope this helps. :)
Answer:
In a feudal system, a peasant or worker known as a vassal received a piece of land in return for serving a lord or king, especially during times of war. Vassals were expected to perform various duties in exchange for their own fiefs, or areas of land.
Explanation:
The Warsaw Pact, which included; <span>Bulgaria, Czechoslovakia, East Germany, Hungary, Poland, Romania, and the Soviet Union.</span>