The Federal Army, also known as the Federales in popular culture, was the military of the Mexican state. Under the long rule of President Porfirio Díaz, a military hero against the French Intervention in Mexico, the Federal Army was composed of senior officers who had served in long ago conflicts. At the time of the outbreak of the Mexican Revolution most were old men and incapable of leading men on the battlefield. When the rebellions broke out against Díaz following fraudulent elections of 1910, the Federal Army was incapable of responding. Although revolutionary fighters helped bring Francisco I. Madero to power, Madero retained the Federal Army rather than the revolutionaries. Madero used the Federal Army to suppress rebellions against his government by Pascual Orozco and Emiliano Zapata. Madero placed General Victoriano Huerta as interim commander of the military during the Ten Tragic Days of February 1913 to defend his government. Huerta changed sides and ousted Madero's government. Rebellions broke out against Huerta's regime. When revolutionary armies succeeded in ousting Huerta in July 1914, the Federal Army ceased to exist as an entity.
In February 1912, the Federal army consisted of 32,594 regulars and 15,550 irregulars. This was far below the official number of 80,000 as stated by the army executive. By September of the same year the official strength of the army was 85,000 men. In addition there were 16,000 Rurales, 4,000 Urban Police and 16,200 Militia, rural guards and other pro-government men under arms. In April 1914 Huerta claimed his army had reached the size of 250,000 men, with 31 regiments of Rurales and 31,000 Militia. A more realistic assessment of his men by that July was 71,000, while U.S. observers said it was closer to 40,000.
Specific numbers aside, the rapid expansion of the army had led to a deterioration in the quality of the average recruit, or more accurately, conscript. Huerta made an attempt to increase the size of the army by ordering a mass levy, or forced conscription from the streets by his press-gangs, who would fall upon men as they left church or pull them from cinemas. Very few of the men under his command were volunteers and many deserted the army. Huerta tried improving morale by increasing pay in May 1913 by 50%. At the same time 382 military cadets were given commissions and attempts were made to increase the number in training.