Suppression of the Kronstadt mutiny. Soldiers of the Red Army attack the island fortress of Kronstadt on the ice of the Gulf of Finland.
Unknown author<span style="display: none;">Unknown author</span>
after 6 March 1921 <div style="display: none;">date QS:P,+1921-03-06T00:00:00Z/7,P1319,+1921-03-06T00:00:00Z/11</div>,before 18 March 1921 <div style="display: none;">date QS:P,+1921-03-18T00:00:00Z/7,P1326,+1921-03-18T00:00:00Z/11</div>
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