what caused the rise of the feudal system in japan?

Question

nurali · Answer

The king gave large estates to his friends and relatives. These estates known as the fief included houses, barns, tools, animals, and serfs or peasants. The king also promised to protect the vassal on the field or in the courts. In return the nobles who were granted the fiefs swore an oath of loyalty to the king. The nobles promised never to fight against the king. They also had to give the king whatever he asked for. The king may ask for men to fight a war, money, or advice. The nobles also gave the king a place to stay when he traveled.