One big similarity is that they both were in the same area they dealt with the same terrain and they also lived in the same culture as each other they were quite similar despite being two different cultures.
The Japanese feudal system ended because the lack of a centralized government in the system
There might be a link here
The regulators marched on the arsenal trying to get the weapons and overthrow trhe government. The federal government could not finance the troops necessary to contol the rebellion, so it had to be put down by the Massachusetts State Militia. This influenced in that many took the view that the "Articles of Confederation" had to be revised.
