November 1918 insurgency in Alsace–Lorraine

The Alcase-Lorraine insurrectionary movement started by returning German soldiers, local workers, and sailors during the First World War, inspired by communist workers' and soldiers' councils in several cities of Alsace–Lorraine from November 8 to November 22, 1918, as well as the German revolution of 1918–1919. Insurrectionists hoisted a red flag was atop Strasbourg Cathedral.