United States involvement in the Mexican Revolution with its diplomatic and economic rivals in Mexico, particularly Great Britain and Germany, meant that foreign powers affected the way the Mexican situation played out. When U.S. agents discovered that the German merchant ship, the "Ypiranga", was carrying arms to Huerta's regime, President Wilson ordered troops to the port of Veracruz to stop the ship from docking. The U.S. did not declare war on Mexico city but the U.S. troops carried out a skirmish against Huerta's forces in Veracruz. The "Ypiranga" managed to dock at another port, which infuriated Wilson. On April 9, 1914, Mexican officials in the port of
US signals intelligence in the Cold War current status is uncertain. Spruance-class destroyers sailed on collection missions in the Black Sea, Baltic Sea, and off the coast of Libya, a Soviet client. UN peacekeepers deployed to Beirut in 1983, with US 1st Battalion 8th Marines, which lost 241 men, in the bombing that also killed 58 French paratroopers of 3rd Company of the 6th Parachute Infantry Regiment. SIGINT teams were attached to the Marine force there. Unfortunately, SIGINT had little role to play in the force protection problem. Western hostages were a major concern to the US and UK. The US approach was the Iran-Contra Affair arms-for-hostages