Mexican Revolution so short a time would not occur with volunteers, and the army resorted to the "leva", forced conscription. The revolutionary forces had no problem with voluntary recruitment. Most Mexican men avoided government conscription at all cost and the ones dragooned into the forces were sent to areas far away from home and were reluctant to fight. Conscripts deserted, mutinied, and attacked and murdered their officers. In April 1914, U.S. opposition to Huerta culminated in the seizure and occupation of the port of Veracruz by U.S. marines and sailors. Initially intended, in part, to prevent a German merchant vessel from delivering
21-gun salute bloodshed of the revolution at its border, Mexico was forced to seek arms from European, and to a lesser extent Asian countries. During the occupation, a large German arms shipment aboard the SS Ypiranga was illegally seized, before being released and turned away by the U.S. occupation force. These events ultimately drove a wedge between Mexican-U.S. and German-U.S. relations, and after the start of World War I on 28 July 1914, would cause Germany to seek to influence Mexico into declaring war on the United States, in order to halt U.S. arms shipments to the Allies, and attempt to prevent