The Spartacist uprising, also known as the January uprising or, more rarely, Bloody Week, was an armed uprising that took place in Berlin from the 5th to 12th of January 1919. It occurred in connection with the German revolution that broke out just before the end of World War I. The uprising was primarily a power struggle between the supporters of the provisional government led by Friedrich Ebert of the Majority Social Democratic Party of Germany (MSPD), which favored a social democracy, and those who backed the position of the Communist Party of Germany (KPD) led by Karl Liebknecht and Rosa Luxemburg, which wanted to set up a council republic similar to the one established by the Bolsheviks in Russia. The government's forces were victorious in the fighting.