Yes, I know why Japan became an enemy country of its neighbors. It is because once it became technologically superior almost at the level of Europe and America, it started to behave like them in the late 1800s.
- It occupied and colonized Formosa/ Taiwan in the late 1800s.
- It occupied both Korea
- it fought against and destroyed the Russian Baltic Fleet in the early 1900s in the Tsushima Strait/ Yellow Sea.
- It fought against China and captured Manchuria and established a new Kingdom (Manchukuo) there.
You know it is a long story. But Japan prevailed in the 1st WW and long before that many of its gains were recognized by the Western powers in the Treaty of Portsmouth in 1905. Now, please note wiki citation on the end of 1st WW.
"The year
1919 saw Japan's representative Saionji Kinmochi sitting alongside the "Big Four" (Lloyd George, Wilson, Clemenceau, Orlando) leaders at the Paris Peace Conference.
Tokyo gained a permanent seat on the Council of the
League of Nations, and the
Paris Peace Conference confirmed the transfer to Japan of Germany's rights in
Shandong. Similarly, Germany's more northerly Pacific islands came under a Japanese
mandate, called the
South Seas Mandate.
During the conference, the Japanese delegation proposed that a "
racial equality clause" be attached to the
Covenant of the League of Nations, similar to the covenant's
religious equality clause; however, this proposal was ultimately unsuccessful despite a majority of delegations voting for it.
This rejection of the proposal has been seen by some historians as an event which contributed to
Japan turning away from the Western world in the years after World War I. Japan, by now a great power, continued to expand its influence after the war".
[14][15]
The above being the short history of Japan in the immediate past, Japan deviated from this path after WWll. It anchored itself with the Western economies and went after further and rapid industrialization.
The result is one of the best economies of the world whereby the resource-poor Japanese people are enjoying the fruits of their long struggle in war and now in peace. Japan knows peace can prevail by anchoring only with America and Europe.
Deviating from this path will open ways of militarism and war with its neighbors. So, no more turning away from the West.