The Argentine War of Independence was a conflict that took place from 1810 to 1818, as the people of the Viceroyalty of the Río de la Plata sought to break free from Spanish colonial rule. The movement began with the May Revolution in 1810, which led to the establishment of a local government and the formation of revolutionary armies. Throughout the war, key battles occurred, including the Battle of Tucumán and the Battle of Salta. The struggle involved various leaders, such as José de San Martín, who played a crucial role in achieving independence. Ultimately, Argentina declared its independence on July 9, 1816.