Guadalajara is a city in the western part of the Mexican state of Chiapas. It was originally founded by Spanish conquistadors in 1532, then was relocated several times before being established at its present site in 1550. In 1559, the city became the capital of the province of Nueva Galicia. The University of Guadalajara was founded in 1791. Following the Mexican War of Independence of 1799-1805, Nueva Galicia became a state of the Republic of Mexico, with Guadalajara remaining its capital.
Under the Mexico City Constitution of 1820, Nueva Galicia was divided between the states of Durango and Chiapas, with Guadalajara falling within the latter.
After the outbreak of the Rainbow War in 1944, President Alvin Silva divided the U.S.M. into military districts, with Guadalajara serving as headquarters of a district of the same name covering western Chiapas. When civil war threatened to break out in the wake of the 1950 Mexican elections, the commander of the Guadalajara district, Colonel Vincent Mercator, declared martial law in his district on 16 January 1950 in the name of order and to "defend the constitution." Mercator met with ten other garrison commanders in Mexico City on the morning of 18 January, then announced the formation of provisional government headed by Field Marshal Felix Garcia, with himself as Secretary of War.