The Crisis on the Border in 1916: The National Guard Mobilized

 New York National Guardsmen in Texas, 1916.

The National Guard is mobilized due to the ongoing crisis on the Mexican border caused by the Villista raid of Columbus New Mexico.  This included, of course, the somewhat short handed Wyoming National  Guard.

Mobilized New York National Guardsman.

Not all of the National Guard was Federalized at one time.  The entire National Guard had been Federalized prior to the entry of the United States in World War One, but the mobilization came in stages, with various units taking tours of duty along the Mexican border while the crisis with Mexico endured. The mobilization came to be a critical aspect of the United State's preparations for World War One, although accidentally, as it effectively meant that a huge proportion of the American defense establishment was mobilized and effectively training prior to the American entry into the war.

National Guard Camp, Camp Ordway Virginia, 1916.