"As in previous wars, women aided both Mexican and foreign troops during the French Intervention. Some women fought alongside their male counterparts, while others looked at French troops as employers and marriage partners. The invasion by France started when Spain, England, and France occupied the customshouse in Vera Cruz in 1861-1862 in order to collect revenue to pay claims against Mexico. The French decided to stay in Mexico and create a new French empire in America. It was not until 1867 that the Mexicans were able to expel them.
Ignacia Reachy distinguished herself in the ranks. Reachy, who was born in Guadalajara about 1816, started a women's battalion to defend the city against the French. Col. Antonio Rojas gave her a pair of riding boots while Colonel Gonzalez presented her with the uniform of a second lieutenant. She left Guadalajara to join the Army of the East. Her friend Gen. Ignacio Zaragoza put her in the Second Division under Gen. Jose Maria Arteaga. She fought well in the Battle of Acultzingo on April 28,1862. Reachy was captured by the French while covering the retreat of General Arteaga. After a year in prison she escaped and presented herself to Arteaga for more combat duty. She became a commander of the Lancers of Jalisco and continued to fight with great valor until killed in action in 1866. Reachy's story shows that there were soldiers and even some officers who welcomed women in the ranks.
Soldaderas were part of the successful Mexican forces that defeated French forces in Puebla on May 5, 1862. Every year the battle is re-created by the Zacapoaxtla Indians to commemorate the event. Yet by a strange twist of fate, only men are allowed to play all the roles, including those of the soldaderas. Each man "carries on his back a doll to represent a baby, and a small basket with food and water." The men dressed as soldaderas and carrying rifles also take part in the fighting. An antecedent for this "men only" ritual battle re-creation goes back to Mexica times when the Cihuacoatl (Snake Woman) or war chief had to dress in women's clothing when entering cities recently conquered. The continuation of this ritual shows that some native groups dominated by patriarchal views still distort woman's role in warfare."
Soldaderas in the Mexican Military: Myth and History, Elizabeth Salas