Secretariat of National Defense (Mexico)

The Mexican Secretariat of National Defense (Secretaría de la Defensa Nacional, SEDENA) is the government department responsible for managing Mexico's Army and Air Forces. Its head is the Secretary of National Defense who, like the co-equal Secretary of the Navy, reports directly to the President. Before 1937, the position was called the Secretary of War and Navy (Secretaría de Guerra y Marina). The agency has its headquarters in Lomas de Sotelo, Miguel Hidalgo, Mexico City. The following offices report to the Secretary are the assistant secretary, the chief of staff and the military law bodies.

Under the Federal Organic Law of Public Administration (Ley Orgánica de la Administración Pública Federal), the Secretary has the following duties:
 * Organize, administer and prepare the Army and the Air Force.
 * Organize and prepare the National Military Service.
 * Management of the Army, Air Force, National Guard and armed contingents which don't belong to state's national guard.
 * Plan, direct and handle mobilization of the country in the event of war; formulating and executing, in due case, plans and orders necessary to the country defense, as well as directing and advising civil defense.
 * Construct and prepare the forts and all kind of military buildings for Army and Air Force use, as well as administration of barracks, hospitals and other military buildings.
 * Administer military justice.
 * Acquire and build armaments, ammunition, and all kinds of materials and elements for the use of Army and Air Force.
 * Grant permission for an expedition force to enter another country or to allow another country to send their forces to Mexico.
 * Manage the issuing of licenses to bear firearms with the aim of preventing the use of arms expressly banned in law and also those types of arms restricted by the state for the exclusive use of the Army, Navy and National Guard, with the exception of what is established by the 13th section of Article 30 of the Constitution, as well as the supervision and issuing of permits for the sale, transport and storage of firearms, chemical weapons, explosives and strategic weapons.