OOC: Sheep, I dont know why Manchuria is rebelling because it was originally its own nation called Manchu which was conquered by China, and im assuming in this NES later liberated by Japan.
So why the Manchurians would want to join their conquerors is beyond me.
IC:
The feudal Empire of Nippon. Once a nation divided by internal strife and civil wars between the feudal states of Nippon, was unified by the current Emperors' anscestor, through shrewd diplomatic efforts by portraying the Chinese who had recently conquered Nippons oft ally, Manchu, as a very real threat.
United in war, later became united in peace when the Emperor pushed his complete control over the newly formed Empire of Nippon.
Now his descendants have to deal with a rebellion within the people whom they had liberated. Those people wished Manchuria to be a part of China, the Emperor suspected that the Chinese were behind this subversion attempt. And he would not tolerate it.
Diplomacy=
From: Empire of Greater Nippon
To: Manchurian Rebels
The Empire liberated our good allies, the Qing dynasty of Manchu from Chinese invasion, and now you turn against us? This does not show the gratitude and loyalty you should show.
We are displeased you have been bought by Chinese gold.
To: Empire of China
Unless you cease your subversion attempts within Nippon borders, specifically the province of Manchuria, we will declare war.