Guest,
You would be hardput to find a single country on the face of this earth which has not been responsible for some form of massacre/genocide. Some recipients: Viet Nam, Nanking, Bosnia, Tibet, all of Eastern Europe, the Middle East, native Americans,and on and on and on. Correct me if I am wrong but Canada was the site of the only Inquisitional auto-de-fa in the New World.

Rape and murder appear to be regular activities of soldiers in war who then come home to their families and leave the horror of what they have done behind them.
Historians, either at government instruction or with a bias based on their own beliefs fall short of telling the truth. In Egypt, offending royalty found them selves summarily scratched off their tombs. Stalin was not mentioned in Russian history books for years. Without trying to belittle the fate of Armenia, I have to ask why are you making this an issue here?