Mexican Armed Forces
President of Mexico is the supreme commander of the armed forces – Secretariat of National Defense and Secretariat of the Navy.
Secretariat of National Defense
Mexican Army includes the Mexican Air Force, the Presidential Guard, Military Police and Special Forces.
12 Army Military Regions
http://www.globalsecurity.org/military/world/mexico/army-regions.htm
Secretariat of the Navy
Mexican Navy includes the Naval Infantry Force and the Naval Aviation.
Consists of the two groups – Pacific Force and the Gulf Force of Mexico