generalissimo

"At any rate，future policy will decide by all peoples discussions."
There was such a proclamation from the aristocracy in Kyoto.
But the range of "all peoples".
Nobody knew.
　
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"Current status of the lord of Choshu.
It remains the enemy of the court. (enemy of emperor)
The Emperor should remove it as soon as possible.
　
Aristocracy who were expelled during the previous political change.
Their position also have not changed.
Promptly they should return to Kyoto.
　
Position of the generalissimo of Tokugawa.
They were returned Japan regime to the Emperor.
they must also returned generalissimo’s position to the Emperor."
Iwakura insisted so.
　
・・・・・・・・・
　
latter half of the 12th century.
First samurai government was established in Japan.
　
"Generalissimo subdue the barbarians by order of the Emperor."

At first,legal basis of samurai regime's position was like that.
And this position had become customary.
Gradually this word had the same meaning as the king of Japan.
　
Japanese word of generalissimo is "Seii Daisyougun".
The literal translation is "Great general who conquered the barbarians".
　

As an aside.
The barbarians at that time was people called Emishi.
They were ordinary people who lived in Japan's northeast at that time.
Only， that was not the Emperor's land.