I don't know why many people here are making it seem like a horrible crime, it's a mistake that most of us can do and we probably have done something similar to it or rven worse unknowingly.
I'm an middle eastern and I have some basic knowledge about that tragedy but I dont think I would recognize this uniform if I saw it irl neither would I know many small details about the war, does that make me ignorant? No.
The world has so much issues and just in my country alone there are so many history incidents that I know nothing about cuz it's impossible to know this amount of information.
I don't even know the girl but if she realized what she did and tried her best to fix it then I think she doesn't deserve backlash, she's a human being and these mistakes can be done sometimes.