Mexican War of Independence first official document of independence, known as the Solemn Act of the Declaration of Independence of Northern America. A long period of war followed in the Siege of Cuautla. In 1815, Morelos was captured by Spanish colonial authorities, tried and executed for treason. From 1815 to 1821 most of the fighting for independence from Spain was done by small and isolated guerrilla bands. From these, two leaders arose: Guadalupe Victoria (born José Miguel Fernández y Félix) in Puebla and Vicente Guerrero in Oaxaca, both of whom gained allegiance and respect from their followers. Believing the situation under control, the Spanish
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