Several- you are probably thinking of China.
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
China
1548
Yes.
1931
China
We didn't invade Japan because they predicted 500,000 American casualties. The perfection of the Atomic Bomb, made invasion unnecessary.
The Mongols tried to invade Japan.
Japan invaded Abyssinia in 1931-1933
yes. the mongols did invade Japan. about right after they invaded all of china. well, maybe not right after....