Hazlett joined the Ohio National Guard as a captain in 1916 and participated in the Mexican Expedition.

General Pershing brought several of the guns with him during the Mexican Punitive Expedition in 1916-17 but they were not fired in combat.

The official beginning and ending dates of the Mexican Expedition are March 14, 1916, and February 7, 1917.

It was one of the incidents that sparked the Mexican Expedition, a United States Army attempt to capture or kill Villa.

That year he accompanied the Mexican Punitive Expedition and did aerial patrol work along the border.

Alexander pledged state militia troops to both the war cause and to the Mexican Expedition against Pancho Villa.

The regiments took part in the Philippine-American War from 1899 to 1903 and the 1916 Mexican Expedition.

At the time, 1916, the public's attention was focused upon the "Carrizal Incident" which occurred during the Mexican Expedition.

A preliminary to war: the 1st Aero Squadron and the Mexican Punitive Expedition of 1916.

- Mexican Expedition.