In 1914, 30 countries declare war after the assassination of Archduke Franz Ferdinand of Austria, beginning World War I. At the start of the war, the United States remained neutral and out of the conflict. In April 1917, after attacks on U.S. ships by Germany in attempts to isolate Britain, President Woodrow Wilson declares war. With new technology, the battlefield had drastically changed. These improvements allowed for reconnaissance photos of enemy positions, radio intelligence and a better understanding of the battlefield. New, more effective weapons were developed that increased the ability to kill the enemy in their trenches. These efforts helped end “The Great War” on Nov. 11, 1918. On June 28, 1919, the Treaty of Versailles was signed, officially ending WWI.
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