History of Spain (1810–73) daring march from Venezuela to New Granada (Colombia), he defeated Spanish forces at the Battle of Boyacá in 1819, ending Spanish rule in Colombia. Venezuela was liberated on 24 June 1821 when Bolívar destroyed the Spanish army on the fields of Carabobo on the Battle of Carabobo. Argentina declared its independence in 1816 (though it had been operating with virtual independence as a British client since 1810 after successfully resisting a British invasion). Chile was retaken by Spain in 1814, but lost permanently in 1817 when an army under José de San Martín, crossed the Andes Mountains from Argentina to
Mexican–American War could not be released from its obligations. The US was released from all obligations of Article XI five years later by Article II of the Gadsden Purchase of 1853. The 1848 Treaty of Guadalupe Hidalgo ended the war and enforced the Mexican Cession of the northern territories of Alta California and Santa Fe de Nuevo México to the United States. Mexico acknowledged the loss of what became the State of Texas and accepted the Rio Grande as its northern border with the U.S. The losses amounted to one-third of its original territory from its 1821 independence. Before the secession of