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 Republic of the Congo people from the North, loyal to the MSA. The riots were suppressed by French army and Opangault was arrested. In total about 200 people died. Prime Minister Youlou then held the elections for which Opangault had previously asked in vain. After the May 9 arrest of several politicians, including veteran politician Simon Kikhounga Ngot, because of an alleged communist plot, parliamentary elections were convincingly won by Youlou. On 12 July 1960 France agreed to Congo becoming fully independent. On 15 August 1960, the Republic of Congo became an independent country and Fulbert Youlou became its first President. In November that