There must be many different history interpretations about the modern world history and Japan.
But I think the most important thing of the world history is that Japan was Pandora's Box.
Europe/USA forced Japan to open the country in mid 19th century. Since then, everything began to change.
First, Europe/USA treated Japan as a second-class country and forced Japan to conclude unequal treaty because they said that Japan was not civilized yet. Yes. Japan was a peaceful country and people were modest/non-assertive at that time.
However, once Japan beat China and Russia, and Japan killed many Chinese/Russians by following the same militaristic power as European. Europe/USA agreed to abondon unequal treaties because they admitted Japan was not uncivilized anymore.
In short, militaristic strength and killing many people were the way to first class (civilized) country according to their definition. Interesting, wasn't it?
In the early 20th century, some 70% of this planet was ruled by Europe/USA. In Asia, only Japan and Thailand maintained independence. Thailand maintained independence as a buffer area between French Indochina and British Burma. China was eroded and being in the midst of chaos.
After all, only Japan maintained its full independence.
It was very natural that Japan followed the same path (imperialism/colonialism) as Europe, while it was too late.
Anyhow, Japan's aim to establish "the Great East Asia Co-prosperity Sphere" was too radical and failed.
However, it is an irony of history that the world became more fair and equal after WWII with less racial discrimination and more free trade. and ... it was what Japan wanted.
Before WWII, Japan showed Asians (mostly ruled by Europe/USA) how to fight.
After WWII, Japan showed Asians (mostly less developed) how to become rich. First Taiwan and S Korea followed Japanese success model, and then China. Today, most of Asian countries introduced Japanese know-hows/ success model and lifted off towards prosperity.
After all, Japan was Pandora's box, and still Pandora's box.