Maybe because Japan invaded and occupied Korea. Then tried to invade China.
Japan invaded or attacked Burma , China , Indochina , the Philippines , Malaysia , Manchuria , Wake Island , Hong Kong , Singapore and the Aleutians .
bomb Japan or invade it
Japan has not tried to invade Russia. However, they did try to invade Mongolia which is bordered by Russia. The invasion was stopped by the Russian army.
Japan
1548
China
1931
Yes.
China
invade
Ireland, Scotland, England, France.