Forget or Not Forget?

I've watched the Victory parad on the Red Square. I had very special feeling. But only a day before I could not agree with some persons that said we have not to forget that war. Today I found these photos and, sincerely, think, I was not right yesterday.

I've seen incredibly quantity of the photos of happy German soldiers near their hanged victims. (the last one -exist different photos of smiling soldiers near that girl, she was a partisan)
More photos here: http://zakkusufair.livejournal.com/847510.html?view=4118166#t4118166