The resentment was general in the North—this new, largely Americanized North, Venustiano Carranza, the governor of Coahuila, organized the resistance in the provinces of Coahuila, Nuevo Leon, and Tamaulipas, while Maytorena, the governor of Sonora, and Pesqueira (later in Washington, D.C., as Carranza's representative), with Obregon as the head of their military forces, rapidly cleared that State of Federals, with the exception of the port of Guaymas. These fights were no mere bloodless affairs, but stubbornly contested, with heavy casualties, as a decided principle was involved in the conflict. Villa, the old bandit and personal enemy of Huerta, organized a force in Sonora, and Urbina did likewise in northern Durango. Arms, and especially money to buy them with, were hard to get. Funds were obtained from the tariff at ports of entry, internal taxation, amounting at times to practical confiscation, contributions, and gifts from various sources. It is said that the Madero family put aside $1,000,000, gold, for this purpose.
Though a few individuals went over to the Constitutionalist cause, the Mexican regular army remained true to the ad interim Government. The revolutionists either held or rapidly possessed themselves of the great railroad lines in the majority of cases. Huerta, who is an excellent organizer, soon appreciated the magnitude of the revolt and rushed troops to the north as rapidly as possible, his strategy being to hold all railroad lines and cities with strong columns which would force the revolutionists to operate in the intervals between the railroads. Then Huerta, with these columns as a supporting framework, pushed out mobile columns for the destruction of the rebel bands.
The Carranzistas understood this plan and, to meet it, tore up all the railroads that they could and adopted as their fixed plan never to risk a general engagement of a large force. For the first few months, the rebels, who had adopted the name of Constitutionalists, continued recruiting their forces and destroying the railroads. The Federals tried to repair the railroads and get enough troops into the north to cope with this movement. They obtained new military equipment of all descriptions, the army was increased, and old rebels, such as Orozco and Salazar, sympathizers or tools of the old régime, were taken into the Federal forces as irregulars and given commands.
To understand the apparent slowness of the Federals in moving from place to place and their inability to pursue the rebels away from the railroads, some idea must be given as to their system of operating. The officers of the regular army are well instructed and quite competent. The enlisted men, however, come from the lowest strata of society, and, except in the case of a foreign war, have to be impressed into the ranks. They bring their women with them to act as cooks and to transport their food and camp equipage. Military transportation, that is to say, baggage trains of four-mule wagons and excellent horses for the artillery, does not exist in the Mexican army. In fact, when away from a railroad, the "soldaderas," as the women are called, carry nearly everything; and they obtain the food necessary for the soldiers' rations. A commissariat, as we understand it, does not exist. This ties the Federals to the railroads, as they can not carry enough ammunition and food for any length of time.
On the other hand, those who first saw Obregon's rebel forces in Sonora and Villa's in Chihuahua were surprised at their organization. There were no women taken with them. They had wagons, regular issues of rations and ammunition, a paymaster, and the men were well mounted and armed.
With Obregon, also, were regiments of Yaqui Indians, who are excellent fighting material. These forces were mobile, and could easily operate away from the railroad. They lacked artillery, without which they were greatly handicapped, especially in the attack on fortified places and on stone or adobe towns. As most of the horses and mules were driven away from the railroads, the insurgents could get all the animals they wanted.
The first large battle occurred on May 9-10-11-12th outside of Guaymas, between Ojeda's Federals and Obregon's Constitutionalists, at a place called Santa Rosa. The Federal advance north consisted of about twelve hundred men and eighteen pieces of artillery. They were opposed by about four thousand men under Obregon, without artillery. Eight hundred Federals were killed and all their artillery captured. The Constitutionalists lost two hundred and fifty men killed and wounded. Comparatively few Federals returned to Guaymas. Each side killed all the wounded that they found, and also all captives who refused to enlist in the captor's force. This success was not followed up and Guaymas remained in the hands of the Federals. The artillery captured by the Constitutionalists had had the breech blocks removed to render them unserviceable; new ones, however, were made in the shops at Cananca by a German mechanician named Klaus.
In the summer, Urbina captured the city of Durango, annihilating the Federals. The city was given over to loot and the greatest excesses were indulged in by the victors. Arson, rape, and the robbing of banks, stores, and private houses were indiscriminately carried on. Horses were stabled in the parlors of the homes of the prosperous citizens, and many non-combatants were killed by the soldiers before order was restored.
At this time the only points held by the Federals on the boundary between the United States and Mexico were Juarez, in Chihuahua, and Nuevo Laredo, in Tamaulipas. The railroads south of these points were also in the physical possession of the Federals but subject to continual interruption at the hands of the Constitutionalists. Venustiano Carranza had established headquarters at Ciudad Porfirio Diaz (Piedras Negras) across the Rio Grande from Eagle Pass, Tex. He started on a trip, during the late summer, through the northern provinces to confer with the leaders of the Constitutionalist movement in order to bring about better coordination of effort on their part. He went through the States of Coahuila, Durango, Chihuahua, and Sonora and established a new headquarters in Sonora. Since then the efforts of the Constitutionalists have been much better coordinated, with the result that they have had much better success.
Jesus Carranza and Pablo Gonzalez were left in charge at Ciudad Porfirio Diaz by Venustiano Carranza when he left on his trip. Shortly after this a Federal column was organized under General Maas for the capture of the railroad between Saltillo and Ciudad Porfirio Diaz. This column slowly worked its way to Monclova and then to Ciudad Porfirio Diaz, which it occupied on October 7th; the Constitutionalists ripped up the railroad and destroyed everything that might be useful to the Federals and a good deal that could not, and offered very little resistance. Villa, in the mean time, having been reenforced by men from Durango and some from Sonora, had been operating in Chihuahua with considerable success. He had fallen on several small Federal columns, destroyed them, and obtained about six pieces of artillery, besides a fresh supply of rifles and ammunition. In September, he had interposed his force between the Federals at Chihuahua City and Torreon, at a place called Santa Rosalía. Villa and the Federals each had about four thousand men. The Federals from the south were making a determined attempt to retake Durango and had started two columns for Torreon of more than two thousand men each, one west from Saltillo, another north from Zacatecas. These had to repair the railroad as they went. Torreon was being held by about one thousand Federal soldiers.
Villa was well informed of these movements, and also of the fact that, in their anxiety to take Durango, a Federal force of about 800 men, under General Alvirez, was to leave Torreon before the arrival of the Saltillo and Zacatecas columns. Having the inner line, Villa with his mobile force could maneuver freely against any one of these. He accordingly left a rear guard in front of the Federals at Santa Rosalía, and, marching south rapidly, met and completely defeated General Alvirez's Federal column about eighteen miles west of Torreon, near the town of Aviles. General Alvirez and 287 of his men were killed, fighting to the last.