On April 6, 1917, the U.S. joined its allies–Britain, France, and Russia–to fight in World War I. Under the command of Major General John J. Pershing, more than 2 million U.S. soldiers fought on battlefields in France. Many Americans were not in favor of the U.S. entering the war and wanted to remain neutral.Click to see full answer. Also know, why did the US enter World War 1? Sinking of American merchant ships In early 1917 Berlin forced the issue. Its declared decision on 31 January 1917 to target neutral shipping in a designated war-zone became the immediate cause of the entry of the United States into the war. Five American merchant ships went down in March.Secondly, what battles did America fight in World War 1? The most famous American battles of WW1 were the Battle of Cantigny fought on May 28, 1918, Chateau-Thierry fought on June 3, 1918, the Battle of Belleau Wood fought between June 6, 1918 – June 26, 1918, the Battle of St. Mihiel that was fought on September 12, 1918. Also Know, was the US involved in ww1? Under President Woodrow Wilson, the United States remained neutral until 1917 and then entered the war on the side of the Allied powers (the United Kingdom, France, and Russia). The experience of World War I had a major impact on US domestic politics, culture, and society.Who won World War 1?The Allies (mainly Britain, France, US) won WW1 which happened from 1914-1919. Germany was the main loser, along with Austria – Hungary, The Ottoman Empire, and the other Central Powers and also Russia, although Russia withdrew from the war early due to civil war issues at home.