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
Coat of arms of London County Council indicated that the arms were those of a municipal body. As the arms included part of the royal arms (the English lion) a royal warrant was issued granting the arms on 29 July 1914. The arms were registered at the College of Arms by letters patent dated 20 October 1914. In 1953 the county council adopted a new representation of the arms, still conforming to the 1914 blazon. The arms granted in 1914 could only be used by the county council itself. The council decided that it required an emblem which it could allow clubs and societies associated with the