It was most successful in Pax Romana. It was hard to maintain because of all the people and enemies.
Well, the Kings benefited a lot from this because they were the rulers of the land. The knights protected the land and were offered social status. The Serfs were the farmers and were given protection under the kingdom.
You can only talk english apparently solo suedes ablar ingles porque so dice en la reglas)
Answer:
When the cold war happened the domino theory came true;indochina became communist which proved the domino theory.Proxy wars are interventions in which a foreign state supports another place indirectly with a lot less support than direct intervention.There were many proxy wars that happened during the cold war for example when the USA supports a cold war based proxy war were the russian were attacking democratic based afghanistan and the afghanistans were getting support of democrats. The russians killed the president and put a russian loyal person in the afghanistan government.