The history of the Arkansas National Guard and World War I begins with the reorganization of the Arkansas State Guard following the Spanish–American War. As a result of difficulties encountered during the mobilization of state militia forces, the United States Congress passed new legislation which resulted in the renaming of the Arkansas State Guard as the Arkansas National Guard. The new federal legislation resulted in increased funding and training for the guard. The newly reorganized Arkansas National Guard was call upon by the President to help defend the border with Mexico in 1916 in response to cross border raids during the Mexican Revolution. The Arkansas National Guard had just returned from the Mexican Expedition in 1917 when it was activated for World War I. As a part of their in