Japan was in for total war and their rape of China and SE Asia along with their treatment of POWs earned them every bit of the suffering they got.
Yes Japan is an amazing ally and friend and place to visit now but under Togo and Hirohito they were as montrous or more so than Germany.
Just finished reading Rise and Fall of The 3rd Reich and Germany got everything it earned from their treatment of Europe especially Eastern Europe ie Russia and Ukraine.