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
James Dutton (Royal Marines officer) Division, 16 Air Assault Brigade along with troops from multiple other nations, including US Marines, the first time American troops had been under the operational command of a British officer since the Second World War. Royal Marines from 40 Commando under Dutton's overall command, along with United States Navy SEALs, secured oil fields on the Al-Faw Peninsula to prevent them from being burned in the first days of the ground operation, after which 40 Commando and others from 3 Commando Brigade moved up the peninsula and took the port city of Umm Qasr, where they encountered resistance into the fifth