In view of this, on 18 February 1918 the Germans began Operation Faustschlag on the Eastern Front, encountering virtually no resistance in a campaign that lasted 11 days. Signing a formal peace treaty was the only option in the eyes of the Bolsheviks because the Russian Army was demobilized, and the newly formed Red Guard was incapable of stopping the advance. They also understood that the impending counterrevolutionary resistance was more dangerous than the concessions of the treaty, which Lenin viewed as temporary in the light of aspirations for a world revolution. The Soviets acceded to a peace treaty, and the formal agreement, the Treaty of Brest-Litovsk, was ratified on 6 March. The Soviets viewed the treaty as merely a necessary and expedient means to end the war. The German Empire created several short-lived satellite buffer states within its sphere of influence after the Treaty of Brest-Litovsk: the United Baltic Duchy, Duchy of Courland and Semigallia, Kingdom of Lithuania, Kingdom of Poland, the Belarusian People's Republic, and the Ukrainian State. Following the defeat of Germany in World War I in November 1918, these states were abolished.