History: Flak bursts through the vapor trails from B-17 flying fortresses of the 15th air force during the attack on the rail yards at Graz, Austria, on March 3, 1945.[1200x849]

https://i.redd.it/mjuejqwphqh31.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/ctc2yg/flak_bursts_through_the_vapor_trails_from_b17/?utm_source=ifttt