What did the note offer Mexico if it would join the war?

The note, known as the Zimmermann Telegram, proposed that if Mexico joined the Central Powers in World War I, Germany would support Mexico in reclaiming territories lost to the United States, specifically Texas, New Mexico, and Arizona. Additionally, Germany promised financial assistance and military support to Mexico. This communication was intercepted by British intelligence and ultimately contributed to the U.S. decision to enter the war against Germany.