on a course toward the rebirth of Poland. The United States entered the conflict on the Allied side, while a process of revolutionary upheaval in Russia weakened her and then removed the Russians from the Eastern Front, finally bringing the Bolsheviks to power in that country. After the last Russian advance into Galicia failed in mid-1917, the Germans went on the offensive again; the army of revolutionary Russia ceased to be a factor, and Russia was forced to sign the Treaty of Brest-Litovsk in which she ceded all formerly Polish lands to the Central Powers. The defection of Russia from the Allied coalition gave free rein to the calls of Woodrow Wilson, the American president, to transform the war into a crusade to spread democracy and liberate the Poles and other peoples from the suzerainty of the Central Powers. The thirteenth of his Fourteen Points adopted the resurrection of Poland as one of the main aims of World War I. Polish opinion crystallized in support of the Allied cause. Józef Piłsudski became a popular hero when Berlin jailed him for insubordination. The Allies broke the resistance of the Central Powers by autumn 1918, as the Habsburg monarchy disintegrated and the German imperial government collapsed. In October 1918, Polish authorities took over Galicia and Cieszyn Silesia. In November 1918, Piłsudski was released from internment in Germany by the revolutionaries and returned to Warsaw. Upon his arrival, on November 11, 1918 the Regency Council of the Kingdom of Poland ceded all responsibilities to him and Piłsudski took control over the newly created state as its provisional Chief of State. Soon all the local governments that had been created in the last months of the war pledged allegiance to the central government in Warsaw. Independent Poland, which had been absent from the map of Europe for 123 years, was reborn. The newly created state initially consisted of former Privislinsky Krai, western Galicia (with Lwów besieged by the Ukrainians) and part of Cieszyn Silesia. See also History of Poland (1795–1918) History of Poland (1918–1939) Diplomatic history of World War I Kingdom of Poland (1917–1918) References Further reading External links Articles relating to Poland at the International Encyclopedia of the First World War. Szlanta, Piotr: Poland , in: 1914-1918-online. International Encyclopedia of the First World War. Posters of the German Military Government in the Generalgouvernement Warshau (German occupied Poland) from World War I, 1915-1916 From