George Frost Kennan was an American diplomat and historian. He was known best as an advocate of a policy of containment of Soviet expansion during the Cold War on which he later reversed himself
Answer:
The mountains isolated Greeks from one another, which caused Greek communities to develop their own way of life. Greece is made up of many mountains, isolated valleys, and small islands. This geography prevented the Greeks from building a large empire like that of Egypt or Mesopotamia
Ok so I’m not certain that this is correct, but I think that when his empire broke up, the fragments of his empire were weak and vulnerable. This caused peasants (serfs) to ask knights for protection, which led to the emergence of feudalism. Feudalism is asking for protection from some people in exchange for loyalty from the peasants.