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
Tampico Affair destroyed to prevent their falling under U.S. control. By the spring of 1914, diplomatic relations between the US and Mexico were strained. US President Woodrow Wilson refused to recognize the presidency of Mexican General Victoriano Huerta, who had been installed as president the previous year after Huerta and the conservative rebel General Félix Díaz, a nephew of Porfirio Díaz, had signed the Embassy Pact with the approval of US Ambassador Henry Lane Wilson, who had since been removed by the president. The instability caused by the ongoing Mexican Revolution threatened US lives and economic interests in Mexico. Although Tampico was