After the last war, President Chiang forgave the Jap by lettting their killer soldiers to go home and asked for NO money for the war damages. The Russian, on the other hand, demanded a heavy ransom(money and land) in return for their effort in the war.
Look at what happened at the end, President Chiang lost the war with communists in China and died heart broken in little Taiwan. The Jap has no remorse for the wrongs they have done in the war and promptly forgot about China's 'kindness'. New China is still arguing with Jap who claim our island/sea as theirs.
I think we look like suckers and never learnt our lessons.