Ypiranga incident to unload. Ypiranga incident The "Ypiranga" Incident occurred on April 21, 1914, at the port of Veracruz in Mexico. The SS "Ypiranga" was a German steamer that was commissioned to transport arms and munitions to the Mexican federal government under Victoriano Huerta. The United States had placed Mexico under an arms embargo to stifle the flow of weaponry to the war-torn state, then in the throes of civil war, forcing Huerta's government to look to Europe for armaments. "Ypiranga" tried to enter the harbor at Veracruz to unload on the first day of the US occupation but was detained by
Action of 9 April 1914 the Siege of Mazatlan, where she ran aground in the harbor and over time was destroyed by both the rebel and federal forces. Action of 9 April 1914 The Action of 9 April 1914 was an important turning point in naval and aviation history. On the said date one of the first naval/air skirmishes took place. This engagement took place off the coast of western Mexico during the Mexican Revolution. The action was part of the naval campaign off Topolobampo at the edge of the Gulf of California. A Constitutionalist biplane dropped bombs on two Huertista gunboats; they all missed.