Answer:
Newman's Code Document
Step-by-step explanation:
The Newman's Code Document was a list of coded messages sent back and forth between the United States and Prussia. In the message Prussia early-on prompted the United States to not be involved in the war; however around 1916 tensions became high and the United States was influenced by the military armaments to receive a huge profit. That following year of 1917 the United States entered ww1.