同じ分類のタグ 軍事 › Russia/Soviet Union
Danbooru の英語定義
The Polikarpov Po-2/U-2 was a Soviet biplane, one of the most produced combat planes in history with over 30,000 examples built. The training variant U-2 was famously used in WWII for night bombing by the all-female 588th Night Bomber Regiment (the Night Witches).