Secretary of War and Navy (Mexico) in the context of Naval Infantry Corps

The Mexican Secretariat of National Defense (SEDENA; Spanish: Secretaría de la Defensa Nacional) 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, is directly answerable 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. Some key figures who answer directly to the Secretary are the Assistant Secretary, the Chief of Staff of the Armed Forces, and all military tribunals.

Alongside his role as a cabinet member the Secretary shares, since 2020, the official ex officio title of "Commanding General of the Mexican Army, Air Force, and National Guard" (Alto Mando del Ejercito, Fuerza Aerea, y Guardia Nacional).

Aureliano Blanquet Torres (31 December 1848 – 7 April 1919) was a Mexican general who served as secretary of war and navy from 1913 to 1914 during the presidency of Victoriano Huerta. Blanquet served in the Federal Army during the Mexican Revolution and was a key participant in the coup d'état during the Ten Tragic Days. One historian has identified Blanquet as "one of the major villains of the Mexican Revolution".