How important was the USA’s entry into the World War One to the outcome of the war?

The USA’s entry to the war was the final blow to the German Empire after fighting three years against Britain and France. It accelerated the progress of the war in 1918 and broke the stalemate. However, American was not the reason why German lost the war itself. Other factors, such as British blockade and two front war, were equally important with American’s entry to the war.

Agitated by the Zimmerman cable, sent from Germany to Mexico, American government found an excuse to enter the war and broke the isolationism, which was the idea that kept American away from the European affair. The American government cut down the debts that were owned by British government toward American companies. They send supplies and troops to the British and French army on the Western Front, which were exhausted by trench warfare and attrition tactic. One of the German tactic was the attrition that aimed to “bleach French white”. Severe battles like the Battle of Somme caused over 400,000 casualties to Britain and Imperial force and nearly 700,000 casualties to German army. After fighting the war for three years, both Allies’ government and German government was nearly bankrupted. Since both sides suffer similar losses, the balance of power and the stalemate was maintained between 1915 to 1917. However, due to the isolationism, American didn’t interfere the war until 1917. Therefore, America was capable of producing adequate supplies and weapons. Under this condition, which ever side that get the help from America would gain a huge advantage. In 1917, Allies force gained this advantage. The supplies from American alleviated the condition in French and British trench, where soldiers suffered from the lack of supplies and malnutrition. American also send soldiers to Europe and, by the end of the