I hope you know where did you say wrong and know what you are talking about. If you don't know I will tell you. You are putting the Chinese as the same league as Japanese and Germans in WWII and comparing an ancient warfare with no moral or ethic at that time to a modern timeline where now ethics are weighted greatly. I don't know what you are thinking but reading between the lines, you are in fact discriminating the Chinese. You put them in the shoes of warmongers where the Chinese were fighting both a civil war and against foreign invasion. Your perception of wars going by greed is just simply amazed me and lastly your reasoning of Chinese constantly fighting each other with the Japanese's easy looting is totally unnecessary and uncalled for. You might be unintentionally offended a group of people already.
Strange, did I prick you? Sigh. Then you've grossly misunderstood so I urge you to please, look @ the bigger picture.
There's no ethics in a war, whether ancient or now. Civilians like you & me suffer @ the mercy of greed by the few who's hungry for power.
Sun Yat Sun once said, "Chinese are like a pile of sand" so let us not be two particles of sand here my friend. Have a nice day.