They needed to sink more supplies; and wisely so.
War was nearing it's end (exhaustion), needed to slow those supplies down abit more!
On January 31, 1917, Germany notified the United States that there would be a resumption of unrestricted submarine attacks. They announced that they would sink on sight all merchant ships found in a zone around the British Isles or in the Mediterranean Sea. US President Woodrow Wilson then cut off diplomatic relations between the US and Germany.
The Villain - 1917 was released on: USA: 15 July 1917 West Germany: August 1967 Germany: 6 April 1997 (TV premiere)
In 1917.
Russia
Final ground offensives were in the making. Armies needed to ensure that the allies didn't get the necessary equipment/supplies, thus giving the German armies all the help they could get.
No they won against Germany in 1918.
The Iced Bullet - 1917 was released on: USA: 21 January 1917 Germany: June 1924
Lady Barnacle - 1917 was released on: USA: 4 June 1917 Germany: May 1923
1917
U.s.
Americans felt that the Germans ware their enemy in 1917 because they though Germany through their leader Hitlar wanted to rule them.