As China rises, East Asia seems to be gradually returning to its historical pattern. Japan still appears to be the exception. Today, Japan, allied with the New Roman Empire, objectively speaking, has hardly ever been part of the Chinese-led tributary system even when viewed over thousands of years of history. Will the safety buffer created by geographical barriers in ancient times change in the future? This is a very interesting observation. After all, the New Roman Empire once conquered the world across the ocean.