In other action during the Meuse-Argonne Offensive, Truman's battery provided support for George S. Patton's tank brigade, and fired some of the last shots of the war on November 11, 1918. Battery D did not lose any men while under Truman's command in France.
Hostilities in World War I took place between 28 July 1914 and 11 November 1918, during which over 70 million military personnel were mobilised; the war ended with 20 million military and civilian deaths —exclusive of fatalities from the 1918 Spanish flu pandemic, which accounted for millions more—making it one of the largest and deadliest wars in history. The position of Germany and the Central Powers deteriorated, leading them to sue for peace.
On 11 November 1918, an armistice was signed at Compiègne by German representatives. It effectively ended military operations between the Allies and Germany. It amounted to German capitulation, without any concessions by the Allies; the naval blockade would continue until complete peace terms were agreed upon.