Emilio Kosterlitzky (Russian: Эмилио Костерлицкий; 16 November 1853 – 2 March 1928) was a Russian-born Mexican colonel during the Mexican Revolution. He had also served in the Mexican Apache Wars and Yaqui Wars. He is most noted for being the commander of the Mexican Rurales, or border police, during the late Nineteenth Century. Biography Emil Kosterlitzky was born on November 16, 1853 in Moscow, to a German mother and Russian Cossack father. He was noted for his language ability; he spoke Russian, Polish, Spanish, French, Italian, English, German, Danish, and Swedish. In his teens, Emil joined the Russian Navy as a midshipman. By 1871, at the age of 18, he deserted his ship in Venezuela. Kosterlitzky then traveled to the Mexican state of Sonora, where he changed his name to Emilio and joined the Mexican Army. Conflicts and wars Mexican Apache Wars During the 1880s he fought in the Mexican Apache Wars. He also assisted American troops pursuing Apaches across the border under the 1882 United States–Mexico reciprocal border crossing treaty. Kosterlitzky became known to the American troops, who called him the "Mexican Cossack". In 1885, Kosterlitzky was appointed commander of the Gendarmería Fiscal, the customs guard for the Mexican government, by President Porfirio Díaz. Yaqui Wars and Nogales Uprising In March 1896, the United States Government had arrested Lauro Aguirre and Flores Chapa, who were both revolutionary insurgents, for being accused of engaging in revolutionary actions since they had established an anti-Díaz newspaper that claimed Porfirio Díaz, the Mexican president, had violated the Constitution of 1857. It was later concluded that both men were innocent. The plan was signed by twenty-three other people, including Aguirre, and another man named Tomas Urrea, the father of revolutionary Teresa Urrea. Teresa Urrea was suspected to be a mastermind since he had many close relationships with the people involved in an uprising. Around sixty Yaqui, Pima, and Mexican Revolutionaries united in a rebel band called ''Teresitas'' to participate in a raid. on August 12, the Teresitas had attacked. Kosterlitzky, who was in charge of many Mexican soldiers, had chased the Teresitas out of Nogales with the help of the 24th Infantry Regiment, under Brigadier General Frank Wheaton. Sources claimed that around 7 Mexican soldiers were killed, while the Teresitas had suffered equivalent casualties. Mexican Revolution Costa Oeste Campaign In 1910, Kosterlitzky had clashed with Emil Lewis Holmdahl, who was an American mercenary. Holmdahl