Mexican Revolution revolution was in 1914, during the "Ypiranga" incident. When United States intelligence agents received word that the "Ypiranga", a German merchant ship, contained illegal firepower for Huerta, President Wilson ordered American troops to the port of Veracruz to stop the ship from docking. Wilson never actually declared war on Mexico. The United States skirmished with Huerta's troops in Veracruz. The "Ypiranga" successfully docked at another port and unloaded the arms, which greatly angered Wilson. The ABC Powers arbitrated and U.S. troops left Mexican soil, but the incident added to already tense Mexican-American relations. In 1916, in retaliation for Pancho Villa's
Mexican response to Hurricane Katrina water and canned food upon request. Naval ship "Papaloapan" arrived the same day, with 389 soldiers and other personnel from the Mexican Navy. Units of the Mexican Army, a total of 184 people, arrived by land with 35 military vehicles. On September 8, the Mexican Army was received with honors at Kelly Air Force Base by the mayor of San Antonio, Texas. Local news channels noted the fact that the Mexican Army operated on U.S. soil after 159 years of absence, with the last time being the Mexican–American War in the 19th century. On September 9, Mexican marines, U.S. Navy