Noob chinese,thats what germany did..they don't make ceremony about Hitler and Himler though,but hundreds of war memorials are still exists in Germany..and for the word criminal,I think you should read what Justice Radha Vinod Pal(Indian member of International Military Tribunal for the Far East) said about it...
"I might mention in this connection that even the published accounts of Nanking 'rape' could not be accepted by the world without some suspicion of exaggeration... Referring to the same incident, Sir Charles Addis on that occasion could say: 'Between two countries at war there was always a danger that one or other of the combatants would seek to turn public opinion in his favour by resort to a propaganda in which incidents, inseparable alas from all hostilities, were magnified and distorted for the express purpose of inflaming prejudice and passion and obscuring the real issues of the conflict.'"
and also this...
"I would hold that every one of the accused must be found not guilty of every one of the charges in the indictment and should be acquitted on all those charges." (about Japanese war criminals)..because he thought its the spirit of retribution, and not impartial justice, was the underlying criterion for passing the judgment against generals..
thats due to that war crimes happened by both parties.every country performed crime against other country by waging wars and killing millions of civilians mercilessly..But always winner writes the history.If Japanese generals are War Criminals,then what about American Generals who nuked millions of civilians in Japan??They are still your hero,right??thats what I say matter of perception..
German War Memorials
thats not against something against any country but to honor their own soldiers..Japan fought hundreds of battles against
various countries.and its the honor they are showing their dead soldiers,its not against any country..