The First World War was a cataclysm that disrupted countless lives. As a modern, total war, it brought men and women into active battle zones across Europe as well as in parts of Africa and Asia. New technology further extended the borders of the war. <span>Air power </span>made it possible to launch attacks against civilian populations at some distance from traditional frontlines, and U-boats sank passenger ships, such as the Lusitania in 1915, that were loaded with men, women, and children crossing the Atlantic. In addition, albeit with less novelty, invading armies ended up occupying swathes of territory. Civilian women and men in Belgium, the north and east of France, Serbia, and parts of the Russian empire among other locales came under the control of occupying powers.
Until April 6th, 1917, America was still a declared neutral state and she had tried to keep out of World War 1. However, she had economic relationships with nations involved in the war such as loans and financial support. American Secretary of State William Jennings opposed this financial support of warring nations, arguing that refusing to loan to any Allied nations in Europe would help to accelerate the end of the war. Even though President Wilson agreed at first, he retreated this when France argued that if it was not legal to take out credits from America, then it was not legal to buy American goods as well.
Regarding this, the American steel industry had faced declining profits during the Recession of 1913–1914. And when the war began in Europe, the increased demand for tools of war began a period of intensified productivity that relieved many U.S. industrial companies.
Im like 98% sure it happened in the US