2. The Zimmerman Telegram
Read the Question.
On a scale of 1 (not very much) to 5 (very much), how much did the Zimmerman Telegram convince the United States to join World War I?
Scan the Blurb.
In March 1917, the Zimmerman Telegram was published. The supposedly secret communication proposed an alliance between Germany and Mexico to specifically oppose the US entry into World War I. This development was one of many that swayed the US government to go to war in Europe.