He has a warlike personality, always playing strategy games.

I am planning to go to Inner Mongolia, an autonomous region of China, next week.

I have been to Outer Mongolia.

I have been to Chicago.

The Paleogene period was a very important time in the history of the Earth.

He was put on trial as a war criminal.

The Second Sino-Japanese War was a war that lasted from 1937 to 1945.

The First Sino-Japanese War was the first war fought between Japan and Qing.

The Russo-Japanese War was a war fought between Japan and Russia.

The Pacific War, also known as the Greater East Asia War, was a war led by Japan, primarily involving battles in the Pacific region.