The Mexican Army (Spanish: Ejército Mexicano) is the combined land and air branch and is the largest part of the Mexican Armed Forces; it is also known as the National Defense Army. The Army is under the authority of the Secretariat of National Defense or SEDENA and is headed by the Secretary of National Defence. It was the first army to adopt (1908) and use (1910) a self-loading rifle, the Mondragón rifle. The Mexican Army has an active duty force of 198,000 with 76,000 men and women of military service age. From Wikipedia
