Could you give more details on this question?
Answer:
recovery and the cold war
Explanation: a war costs a lot of money and the Soviet Union under Stalin didnt want to invest that money into the people but instead put it in the military to rival the United States and Stalin thought the more the people suffered the more likely they are to turn to communism and as the Cold War raged on money still maily went to the military which then caused the Soviet Unions collapse
What is in common with Mongols, White Huns, and the Mughals as well was that all of them were persecuting Buddhists along their conquests on either Europe or Asiatic soil. None of the mentioned civilizations were particularly fond of the buddhistic teachings.
I believe the answer is: Saharan desert
In Hot Desert such as sahara, there is very few water source that organism can use to drink and replenish the fluid in their body, which is why not many animal can afford to cross the Saharan desert.
Camels is the only animal available that could store a Huge amount of water in their hump, which enable them to cross the desert for a very long time without needing to drink.