champion

Lords，when the king was the only Zhou king.

Highest position that they can wish.
It was the position of number two of Zhou.
Yes，they were vassals of the Zhou to the last.

And this position was called 覇者.
Pronunciation of modern Japanese of 覇者 is "Ha-sha".
And literal translation of 覇者 is "champion".


Main role of 覇者.
It is enforcement of the law of the land of the Zhou on behalf of the king.
And it is also led war with foreign enemies on behalf of the king.
(Initially, Chu and Qin was this foreign enemy.)


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In short，覇者 was considered a leader of the lord of all.
Therefore，severe conditions were required to become 覇者.

The strength only.
　
Lords of the candidate of 覇者.　
They were not possible to become 覇者 in such a condition.
Not only the strength，they were also required dignity.　　

And the important thing more than anything else.
If they had not approved in the lord conference，they could not become 覇者.

Approval of the lord conference.
This was the absolute requirement for become 覇者.

Therefore everyone were careful to own behavior.
(On the surface at least.)

Expansion of domestic war under these conditions.
Its possibilities would be low indeed.
　

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However， the situation changes completely.

The lords professed themselves the king after another.
Of course，this might be a mere ratification of reality.
But brake of war has disappeared apparently by this.

Their were the king.
Yes，they did not need to be loyal subjects of the other king already.

Therefore，position they should aim.
It is not a champion in colleagues.
It is a winner to rivals.
And it is also a conqueror to prey.

To the war of conquest from the war of demonstration.
After this，meaning of war was transformed greatly as such.