Mexican Army (Secretariat of National Defense)

Mexican Army (Secretariat of National Defense)
Name	Mexican Army (Secretariat of National Defense)
Native name	Secretaría de la Defensa Nacional
Founded	1821
Country	Mexico
Branch	Land forces
Garrison	Mexico City
Allegiance	Constitution of Mexico
Commander in chief	President of Mexico
Minister	Federal Cabinet of Mexico
Notable commanders	Vicente Guerrero, Antonio López de Santa Anna, Porfirio Díaz, Lázaro Cárdenas, Plutarco Elías Calles

Mexican Army (Secretariat of National Defense) The Mexican Army (Secretariat of National Defense) is the principal land force of Mexico under the Secretariat of National Defense (Mexico), responsible for national defense, internal security, and support to civil authorities. It traces institutional lineage to independence-era forces and has participated in major episodes such as the Mexican War of Independence, the Mexican–American War, the Reform War, the French Intervention in Mexico, the Mexican Revolution, and contemporary security operations. The institution interfaces with agencies like the National Guard (Mexico), Secretariat of Security and Civilian Protection, and international partners including the United States Armed Forces and INTERPOL.

History

The Army emerged after the collapse of the Viceroyalty of New Spain and the proclamation of Agustín de Iturbide in 1821, evolving through interventions like the Pastry War, the Mexican–American War, and the loss of Alta California. Nineteenth-century commanders such as Vicente Guerrero, Antonio López de Santa Anna, and Benito Juárez shaped civil-military relations during the Reform War and the Second French Intervention in Mexico that installed Maximilian I of Mexico. The Porfiriato under Porfirio Díaz professionalized elements, while the Mexican Revolution propelled figures like Francisco I. Madero, Emiliano Zapata, Pancho Villa, and Álvaro Obregón into prominence and led to the 1917 Constitution of Mexico. Mid-twentieth-century reforms under Lázaro Cárdenas and Plutarco Elías Calles expanded roles in national projects tied to Petróleos Mexicanos (PEMEX), agrarian reform, and the Mexican Economic Miracle. During the Cold War the Army engaged in border security, counterinsurgency against groups like the Zapatista Army of National Liberation and responded to crises including the 1985 Mexico City earthquake. In the twenty-first century, the Army became central to the Mexican Drug War, operating alongside the Federal Police (Mexico), the Naval Infantry Corps (Mexico), and the National Guard (Mexico).

Organization and Command Structure

The Army is administratively led by the Secretariat of National Defense (Mexico) and operationally subordinated to the President of Mexico as Commander-in-chief of the Mexican Armed Forces. Its structure includes regional Military Regions, Military Zones, and field corps such as the I Corps (Mexico), divisional headquarters, and specialized commands for Army Aviation (Mexico), artillery, engineers, and logistics. Units range from infantry battalions, cavalry regiments, and mechanized brigades to special forces groups like the Fuerzas Especiales (Mexican Army). Training and doctrine are coordinated with institutions including the Heroic Military Academy, the Military Medical School, and the National Defense College (Mexico). Coordination mechanisms exist with the Secretariat of the Navy (Mexico), the Ministry of Foreign Affairs (Mexico), and state governors through the National Defense Plan.

Roles and Missions

Primary missions derive from the Constitution of Mexico and statutory mandates: territorial defense, internal security support, disaster relief, and protection of critical infrastructure such as facilities of PEMEX and national institutions. The Army conducts counter-narcotics operations against cartels like the Sinaloa Cartel, Jalisco New Generation Cartel, and Los Zetas, enforces court orders with the Attorney General of Mexico, and supports law enforcement bodies including the Federal Judicial Police historically and the National Guard (Mexico). It provides humanitarian assistance during events like the 2017 Puebla earthquake, pandemic responses linked to Secretary of Health (Mexico), and infrastructure projects in conjunction with the Secretariat of Infrastructure, Communications and Transportation and state governments.

Personnel, Training, and Doctrine

Personnel management follows statutes in the Mexican Armed Forces legal framework with career tracks for conscripts, professional soldiers, noncommissioned officers, and officers educated at the Heroic Military Academy (Mexico), the Military College of War, and specialty schools. Doctrinal influences come from historical campaigns such as the Battle of Puebla, experiences in counterinsurgency against the Zapatista Army of National Liberation, and collaboration with foreign militaries like the United States Army and the Canadian Army through exercises and exchanges. Professionalization efforts emphasize human rights training aligned with obligations under the Inter-American Commission on Human Rights and the United Nations peacekeeping norms, while medical, engineering, and aviator training links to institutions like the Mexican Air Force and international academies.

Equipment and Logistics

The Army fields armored vehicles, artillery, helicopters, small arms, and engineering equipment sourced from domestic industry like SENASICA-linked manufacturers and international suppliers such as OTAN partners and the United States through programs akin to Merida Initiative-era transfers. Key platforms include light tanks, armored personnel carriers, attack and transport helicopters, and communication systems interoperable with NATO standards and regional partners. Logistics are coordinated via depot networks, rail and road links across corridors such as the Pan-American Highway, and procurement governed by federal procurement laws interacting with the Ministry of Finance and Public Credit (Mexico).

Operations and Deployments

Operational history spans conventional campaigns in the Mexican–American War and the French Intervention in Mexico, counterinsurgency during the Cristero War, and modern internal security operations in states like Chihuahua, Sinaloa, Guerrero, and Michoacán against organized crime. Internationally, Mexican Army officers have participated in UN missions and bilateral exchanges with the United Nations and regional bodies like the Organization of American States. Domestic deployments include disaster response to earthquakes in Puebla and Oaxaca, pandemic logistics across states such as Nuevo León and Jalisco, and security support for major events involving the Secretariat of the Interior (Mexico) and federal electoral authorities like the National Electoral Institute (Mexico).

Legal Framework and Civil-Military Relations

Civilian oversight is established by the Constitution of Mexico, laws like the Organic Law of the Armed Forces, and institutional mechanisms within the Secretariat of National Defense (Mexico), subject to congressional review by the Congress of the Union (Mexico). Civil-military relations have evolved from nineteenth-century caudillismo associated with figures such as Porfirio Díaz to twentieth-century professionalization under Lázaro Cárdenas and contemporary debates over the Army's role in public security alongside the National Guard (Mexico), judicial institutions, and human rights bodies including the National Human Rights Commission (Mexico). Transparency, accountability, and legal limits on internal deployments remain areas of legislative and civil-society scrutiny involving organizations like Amnesty International and domestic NGOs.

Category:Military of Mexico