The Mexican Frontier, 1821–1846 translated into Spanish and published in Mexico and Spain. As of 2013, it was still in print. The book won the Ray Allen Billington Prize from the Organization of American Historians in 1983, the Westerners International Co-Founders Book Award for best nonfiction of 1982, the 1982 history Award from the Border Regional Library Association, and the Presidio La Bahia Award from the Sons of the Texas Republic. The Mexican Frontier, 1821–1846 The Mexican Frontier, 1821–1846: The American Southwest Under Mexico by historian David J. Weber is a history of the part of Mexico's north and northwest that became part of
Mexican War of Independence of Iguala, Iturbide persuaded Guerrero to join his forces in support of this conservative independence movement. A new army, the Army of the Three Guarantees, was placed under Iturbide's command to enforce the Plan of Iguala. The plan was so broadly based that it pleased both patriots and loyalists. The goal of independence and the protection of Roman Catholicism brought together all factions. Iturbide's army was joined by rebel forces from all over Mexico. When the rebels' victory became certain, the Viceroy resigned. On August 24, 1821, representatives of the Spanish crown and Iturbide signed the Treaty of Córdoba, which