BACKGROUND

The Mexican Border Crisis of 1916-1917 revolved around Mexico's ongoing instability as the Mexican Revolution of 1910-1920 continued playing out--both in Mexico and the United States. 

For the United States the crisis required military action and this action resulted in many changes for a largely constabulary Army that would soon face its greatest test since the American Civil War as it entered into combat in France in 1918. 

The border crisis saw major changes in Army equipment, organization and leadership.  It also saw a rehearsal for National Guard moblization that uncovered problems requiring War Department action to correct.  Ultimately, all of these combined to create an Army better prepared for overseas combat service. 

This exhibit includes the historiographical argument, a timeline of major events,  a listing of key personalities who played roles in the decision to enter into Mexico and call the National Guard into active federal service, and, the campaign medals authorized for participants.