How The Zimmerman Note outraged Americans by proposing that join Germany in a war against the US?

The Zimmerman Note, a secret diplomatic communication from Germany to Mexico in January 1917, proposed a military alliance between the two countries in the event that the United States entered World War I. It promised Mexico the territories of Texas, New Mexico, and Arizona in exchange for their support. When the note was intercepted and made public, it incited outrage among Americans, who viewed it as a direct threat to their sovereignty and security. This revelation contributed significantly to the growing sentiment for U.S. involvement in the war against Germany.