Why did both China and Japan become isolationist?

Explanation:

Both China and Japan had experiences with isolationism motivated by a desire to prevent foreign influences from undermining their values and society.

maybe you should ask google for the answer for the question you're looking for

states

explanation:

as the old saying goes, all politics are local. state and federal governments affect our daily lives in numerous ways. yet, in our federal system, there is supposed to be a balance between federal and state power. as james madison envisioned it in federalist no. 51, “the power surrendered by the people” would be “divided between two distinct governments,” creating a balance of power that would enable the “different governments [to] control each other.”