History: Red Army artillery shell the island fortress of Kronstadt, occupied by communist rebels, off the coast of Saint Petersburg, between 7 and 17 March 1921 [1199x815]

https://upload.wikimedia.org/wikipedia/commons/e/ea/The_bombardment_of_the_Kronstadt_forts.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/cv6wfx/red_army_artillery_shell_the_island_fortress_of/?utm_source=ifttt