That's not a mp40. It's Blyskawica smg ( https://en.wikipedia.org/wiki/B%C5%82yskawica_submachine_gun ), but I don't know if it should be tagged. That's the only picture with that particular weapon, and it isn't that popular, so for now I leave it the way it is. Also, no tags for Warsaw (burning city around the girl) and Polish Home Army (uniform on the girl, also - title of the picture on pixiv), and I can't find fitting one for resistance. Added tags for Poland and Polish flag, 'cause there are around 3 flags in the picture, and one Poland in the background, foreground, and everywhere else in the picture.
