Argentine War of Independence Chile, allied with the Mapuches. On April 4, Argentine Colonel Juan Gregorio de Las Heras had occupied Concepción, but the Royalists retreated to Talcahuano. In early 1818, Royalist reinforcements from the Viceroyalty of Peru arrived, commanded by general Mariano Osorio, and advanced towards the capital. San Martín then turned to scorched earth tactics and ordered the evacuation of Concepción, which he thought was impossible to defend. On 18 February 1818, the first anniversary of the battle of Chacabuco, Chile declared its independence from the Spanish Crown. On March 18, 1818, Osorio led a surprise attack on the joint Argentine-Chilean army,
History of the Social Democratic Party of Austria an end of the war and the terrible suffering that the people, especially the worker's families, had to endure. By October, a provisional national assembly ("Provisorische Nationalversammlung") was convened under the Social Democrat Karl Renner, which tried to work out a provisional constitution ("Provisorische Verfassung") under the leadership of a new state council led by the new state chancellor Renner. The Social Democrats wanted a new form of government and, on 12 November 1918, the republic was proclaimed by Renner. Renner's government introduced an eight-hour workday and paid holidays. The party had moderate success in the 1920s, but its conflict