Final answer:
The Zimmerman Telegram was a secret communiqué from Germany to Mexico, attempting to encourage Mexico to go to war with the U.S. during World War I. Although Mexico did not consider aiding Germany, the telegram caused increased tensions along the US-Mexican border.
Step-by-step explanation:
The subject of the question is History and the grade level is High School. The secret communiqué from Germany, known as the Zimmerman Telegram, was an attempt to encourage Mexico to go to war with the U.S. during World War I.
The telegram was sent by Germany's foreign minister to the German ambassador in Mexico, offering an alliance against the United States and promising to help Mexico regain territory lost in the Mexican-American War. Although Mexico never seriously considered aiding the German cause, the Zimmerman Telegram led to increased tensions along the US-Mexican border.