A popular revolution arose in Mexico to overthrow the oppression and injustices of the lengthy dictatorship of General Porfirio Díaz.
 
The war spanned over into raids across the border into the southern United States. The most notable of these was Pancho Villa's attack on Columbus (New Mexico) in 1916 that led to Punitive Expedition of General John Pershing who led 5,000 troops into Mexico in search of Villa.
 
Major photographers:
 

• Eugenio Espino Barros (1883-1978) took photographs for a book that was designed to celebrate the centinial of Mexican independence dedicating it to 'General Porfirio Díaz, Constitutional President of the Mexican Republic. As an admiring and respectful homage.' - the book containing 391 of his photographs was published in 1910.
• Agustin Victor Casasola (1874-1938) - Mexican photojournalist with people on all sides taking photographs. The photographic agency he founded was responsible for taking and preserving a vast collection on the Mexican Revolution and was purchased by the Mexican government in 1976. The collection is now in the 'Fototeca' de Pachuca, a part of the National Institute of Anthropology and History (Instituto Nacional de Antropología e Historia, Calle Casasola s/n, Col. Centro, Pachuca, Hidalgo, Mexico). A number of the photographs were published in his work 'Historia gráfica de la Revolución Mexicana' but it is difficult to ascertain which photographs were actually taken by Casasola as he tended to claim that they were all his.
• Hugo Brehme (1882-1954) - German photographer who spent a lot of time in Mexico. He was a noted expedition photographer and photojournalist and made the most famous photograph of the Mexican revolutionary Emiliano Zapata. His book ‘Mexico Pintoresco‘ (1923) was translated into four languages.
• Robert Runyon's photographs of the Mexican Revolution (1910-20) represent a generally impartial eyewitness account of events in Northeastern Mexico from 1913 through 1916. Three hundred fifty unique images in the Runyon Collection document one chapter of the revolution which Runyon witnessed in Matamoros, Monterrey, Ciudad Victoria, and the Texas border area and surrounding area.
  http://runyon.lib.utexas.edu/conflict.html