In June 1916, while the horrors of the Great War in Europe remained an ocean away, President Woodrow Wilson anticipated a more immediate threat along the United States’ border with Mexico.

Earlier that year, Mexican revolutionary Pancho Villa had led a deadly raid into New Mexico that left an American town destroyed.  After months of debate, Congress passed the National Defense Act of 1916 on June 3, which authorized a increase to the number of troops in the regular U.S. Army during peacetime.  The law also dramatically increased the strength and training standards of the National Guard.

Only two weeks later, President Wilson called on National Guardsmen from every state to report to the U.S.-Mexico border to take part in what was then called the “Mexican Punitive Expedition.”  On June 19, 1916, the day after the President’s call to action, Connecticut Governor Marcus Holcomb mobilized the First Connecticut Infantry, part of the state’s newly-reformed National Guard unit.  Over 3,500 troops gathered at the state’s military training grounds in Niantic before embarking on a week-long trip to the border town of Nogales, Arizona.

While Connecticut’s troops didn’t participate in any excursions across the border, they remained in Nogales and nearby Fort Huachaca for seven months completing training exercises that were viewed as valuable preparation in case the Germans ever decided to invade the United States.  In light of the on-the-ground experience they gained while serving on the Mexican border, Connecticut’s first National Guard mobilization under the new National Defense Act was, by all accounts, a success.

Further Reading

“Mexican Border, 1916,” Connecticut State Library ‘Connecticut in WW1’ photo archive

Donna Neary, “On the Border,” National Guard Heritage Series image gallery

Glenn Williams, “The National Defense Act of 1916,” U.S. Army Center of Military History