Since their respective foundings, the relationship between Mexico and the United States has been one of the most complex between countries of the Americas. The economic, social, and cultural histories of the two nations are intertwined. The United States and Mexico first established diplomatic relations on December 12, 1822, and with time, different particularities developed on either side of the border.
The twentieth century ushered in a new era in the relationship between Mexico and the United States, as the end of the Civil War and the beginning of the Mexican Revolution created continuous changes in the development of diplomacy. On the one hand, the United States grew in its position as an economic power. This spurred the migration of Mexicans in search of better working conditions. In Mexico, meanwhile, political instability led to ups and downs in terms of the quality of response by the Mexican Foreign Service (Servicio...