British cryptographers deciphered the Zimmermann Telegram in January of 1917. In the telegram German Foreign Minister Arthur Zimmermann offered Von Eckhardt (German Minister of Mexico), lost areas in the United States such as Texas, New Mexico, and Arizona. In return they asked Mexico to join the Central Powers and attack the United States. To protect their intelligence from detection and to make sure that the citizens in America would believe them, the British presented the telegram to President Wilson on February 24. It was published on March 1 leading to the United States Congress declaring war on the Central Powers on April 6th, 1917.