By January 1917 he was still no closer to being caught, and Pershing’s forces were ordered to withdraw and return to the United States.

On the 11th November 1918, fighting on the First World War’s Western Front ended when representatives from the Allies and Germany signed the Armistice of Compiègne.

Forty-four years after the establishment of Yellowstone, the service was created when President Wilson signed the National Park Service Organic Act on 25 August, 1916.