In response to the Tampico Affair President Woodrow Wilson ordered the U.S. Navy to prepare for the occupation of the port of Veracruz. While waiting for authorization of Congress to carry out such action, Wilson was alerted to a German delivery of weapons. They were for Victoriano Huerta due to arrive to the port on April 21. Because of this Wilson issued an immediate order to seize the port's customs office. They were also ordered to confiscate the weaponry.