spoils of war

I'm not big on politics or foreign diplomacy issues, but when I first saw this picture, I thought, "Hmm... that chick standing over the dead guy is pretty cute. She has a healthy smile."

Now that I've studdied the picture a little longer, I'm having my doubts about her... what's going on with that stain on the upper thigh of her pants? Please tell me that it's blood or saliva from the corpse... tell me it's not what I think it is.