Instead, United States turned to trading more and more with the Allied powers (Doc. 2). However, this angered Germany, especially since America has declared itself neutral, which was obviously not the case from German perspective. In retaliation, Germany used its U-boats to sink any and all American ships that came close to the coasts of European nations. This infuriated the United States as it caused hundreds of deaths of Americans as well as millions if not billions of dollars lost in profit. In one month prior to the declaration of war, German submarines sank nearly 900,000 tons of American ships.
Second, in January of 1917, the British intelligence intercepted the Zimmerman telegram from Germany to Mexico (Doc. 4), which urged Mex