In Memory of My Army Life on the Mexican Border MedalTrust in The Lord and Keep Your Powder Dry with eagle, shield and US flag on reverse
Undated but most attribute to circa 1917. I personally think it may be a year or three later.

This is very similar to so-called dollar HK-892
Service With American Army In the Worlds War 1917 Medal except cactus was added in the background of the same kneeling soldier. Reverse is the same. 35 mm Bronze.
I had wanted one of these but they fetched way too high prices for my taste until this one came along. I picked this one because I am confident I can de-crud the trapped grime and properly conserve it.
Before and After images will update later.
Mexican Border War (1910-1919)
The Border War, or the Border Campaign, refers to the military engagements which took place in the Mexico-United States border region of North America during the Mexican Revolution. The Bandit War in Texas was part of the Border War. From the beginning of the Mexican Revolution in 1910, the United States Army was stationed in force along the border and on several occasions fought with Mexican rebels or federals.
The height of the conflict came in 1916 when revolutionary Pancho Villa attacked the American border town of Columbus, New Mexico. In response, the United States Army, under the direction of General John J. Pershing, launched an expedition into northern Mexico, to find and capture Villa.
Though the operation was successful in finding and engaging the Villista rebels, and in killing Villa's two top lieutenants, the revolutionary himself escaped and the American army returned to the United States in January 1917.
Conflict at the border continued, however, and the United States launched several additional, though smaller operations into Mexican territory until after the American victory in the Battle of Ambos Nogales, leading to the establishment of a permanent border wall.
Almost 100 years ago to the day that I post, American and Mexican forces skirmished near El Paso, Texas, on the border on
June 16th 1919 in what was known as the Battle of Ciudad Juárez.
This conflict is singular for the fact that the Mexican army and the American army joined forces to fight the Villistas led by Pancho Villa.
It was the second-largest battle of the Mexican Revolution involving the United States, and
is considered the last battle of the Border War.

On Friday, 20 July 1923, Villa was killed while visiting Parral.
He frequently made trips from his ranch to Parral for banking and other errands, where he generally felt secure. Villa was usually accompanied by his entourage of Dorados, or bodyguards, but for some unknown reason on that day he had gone into the town without most of them, taking with him only three guards and two other employees. He went to pick up a consignment of gold from the local bank with which to pay his Canutillo ranch staff. While driving back through the city in his black 1919 Dodge touring car, Villa passed by a school, and a pumpkinseed vendor ran toward his car and shouted "Viva Villa!", a signal to a group of seven riflemen who then appeared in the middle of the road and fired more than 40 rounds into the automobile. In the fusillade, nine dumdum bullets, normally used for hunting big game, hit Villa in the head and upper chest, killing him instantly.