A coup launched in Berlin by a group of radical socialist revolutionaries is brutally suppressed by right-wing paramilitary units from January 10 to January 15, 1919; the group’s leaders, Karl Liebknecht and Rosa Luxemburg, are murdered.
Germany’s long, ultimately losing struggle on the battlefield—culminating in the signing of the armistice in November 1918—and dismal conditions on the home front, including severe food shortages, caused many German socialists to turn away from the Social Democratic Party, which had supported the war effort in 1914 in the hopes that reform would follow a German victory. Although still the largest party in the Reichstag government, the Social Democrats saw their membership fall from over a million in 1914 to a quarter of that number in 1917.