It was over a century ago--World War I, and how many wars have there been since then? World War II, Korea, Vietnam, the Gulf War, Somalia, Afghanistan, Iraq, Syria---America's entry into the war against Germany placed America front and center on the world stage and its involvement in the war proved decisive in bringing about the defeat of the Germans. Just getting an army to the frontlines was an enormous achievement. In 1917, at the beginning of the war for the Americans, the US Army numbered 200,000 officers and men--regulars and National Guard. Nineteen months later, the Army had mobilized, trained and equipped 4 million men and had shipped 2 million of them to France. The war ended suddenly with the Armistice of November 11, 1918, as the great weight of American numbers began to be felt--by an almost totally exhausted Germany. This was most fortunate for my grandfather who was in the Army. The war ended before he was shipped overseas.
Eisenhower (son of Dwight D. Eisenhower) writes about all the actions the American Army participated in--Cantigny, Belleau Wood, Chateau Thierry, St. Mihiel, and the biggest of all the battles for the Yanks--the Meuse-Argonne. All were terrible and costly battles in which the American soldiers showed a fighting spirit that would not accept defeat--no matter the cost. It was too much for the battle-hardened veterans of the German Army, who were stretched to the limit. They gave up before they had to face the full power of the Americans, which would have continued to build up into 1919, with ever-increasing numbers of tanks and airplanes.. The price the Yanks paid was high--for less than a year of combat--53,500 men from battle deaths, over 63,000 more deaths from disease and other causes and 204,000 wounded. While the American losses were heavy, they were light compared to those of the allies. The British suffered 900,000 men killed, the French about 1.35 million, Russia, 1,750,000. Germany and Austria lost nearly 3 million dead.
The greatest tragedy of all was that they would do it all over again, in a second world war.