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The Mexican Border Service Medal stands as a distinctive recognition of one of the largest National Guard mobilizations in American history prior to World War I. Established by an Act of Congress on July 9, 1918, this bronze service medal honored the approximately 110,000 to 150,000 National Guard and Regular Army personnel who served along the U.S.-Mexico border during the tense period of 1916-1917, when the Mexican Revolution threatened to spill across the international boundary.
Unlike the Mexican Service Medal, which recognized service in Mexico or combat operations against Mexican forces, the Mexican Border Service Medal specifically honored defensive service within the United States—patrolling the border, protecting American communities, and maintaining security while other forces pursued Pancho Villa inside Mexico.
The Mexican Revolution, which began in 1910, created years of chaos and violence along the U.S.-Mexico border. By 1916, the revolutionary forces of Francisco "Pancho" Villa had turned hostile to the United States after President Woodrow Wilson recognized the government of Venustiano Carranza, Villa's rival.
On March 9, 1916, Pancho Villa launched a devastating raid on Columbus, New Mexico, with approximately 485 men. The attack killed 18 Americans—10 soldiers and 8 civilians—and shocked the nation. While President Wilson ordered the Punitive Expedition under General John J. Pershing to pursue Villa into Mexico, this left the 1,200-mile border virtually undefended as regular Army units moved south to support the expedition.
The situation deteriorated further in early May 1916 when additional Mexican raiders struck the Texas towns of Glen Springs and Boquillas. Between June 1915 and June 1916, Mexican irregulars had conducted 38 separate raids on U.S. territory. It became clear that a massive border security operation was needed.
Adding to border tensions was the threat revealed by the Zimmermann Telegram in early 1917—Germany's proposal to Mexico to attack the United States. This made border security not just a matter of preventing bandit raids, but a question of national defense against potential German-funded invasion.
On May 8, 1916, President Wilson federalized National Guard units from Texas, Arizona, and New Mexico—the states directly bordering Mexico. However, these three states could provide only about 5,000 troops total, predominantly infantry with very few of the desperately needed cavalry units for border patrol.
On June 3, 1916, President Wilson signed the National Defense Act of 1916, which fundamentally restructured the National Guard and established it as the primary reserve force of the U.S. Army. This legislation clarified federal authority to call up the National Guard for national emergencies.
Just fifteen days later, on June 18, 1916, President Wilson issued orders mobilizing the entire National Guard of the United States—approximately 110,000 troops from every state except Nevada (which had no organized National Guard at the time) and the District of Columbia. This represented the largest peacetime mobilization in American history to that date.
According to War Department reports and historical accounts, the call-up brought into federal service:
The total force eventually reached between 140,000 and 150,000 National Guard and Regular Army troops deployed along the border by late summer 1916.
National Guard units began deploying to the border in late June and early July 1916. Most units remained on the border through late 1916 and into early 1917. As tensions with Germany increased and World War I loomed, units were gradually withdrawn beginning in late January 1917. Many units returned home just in time to be remobilized for deployment to France after the U.S. declaration of war on Germany in April 1917.
Cavalry Officer Uniform With Mexican Border Service Ribbon on 2nd row, center ribbon
The Mexican Border Service Medal was established by an Act of Congress (Public Law 193, 65th Congress) approved on July 9, 1918. This legislation was passed after many of the same National Guard units that had served on the border were already fighting in France during World War I.
Congress created the medal specifically to recognize National Guard troops and Regular Army personnel who had performed border patrol duty but had not crossed into Mexico and therefore did not qualify for the Mexican Service Medal. The award acknowledged that border patrol service, while not involving combat in Mexico, was nonetheless vital national service during a period of genuine threat.
The Mexican Border Service Medal held unique dual status as both a Federal award and a decoration of the United States National Guard. This reflected the hybrid nature of National Guard service—troops were simultaneously members of their state militias and, when federalized, members of the U.S. Army.
The first Mexican Border Service Medal was issued to Major General Charles M. Clement of Pennsylvania on July 16, 1919, in recognition of his status as the longest-tenured National Guard officer eligible for the award at the time of its authorization. General Clement commanded Pennsylvania's division (later redesignated the 28th Infantry Division) during the border deployment.
Personnel were eligible for the Mexican Border Service Medal if they served during either of two overlapping time periods:
May 9, 1916, to March 24, 1917
Service members who performed military duty along the U.S.-Mexico border during this period qualified for the medal. This period encompassed the peak of the National Guard mobilization and border patrol operations.
January 1, 1916, to April 6, 1917
Personnel specifically assigned to the Mexican Border Patrol during this extended period also qualified. This earlier start date (January 1 vs. May 9) recognized Regular Army troops and early-mobilized National Guard units that began border patrol operations before the mass call-up.
To be eligible, service must have been performed:
Most Important: Service members who were eligible for and received the Mexican Service Medal were explicitly NOT eligible for the Mexican Border Service Medal. The two medals were mutually exclusive.
This meant:
The primary recipients were National Guard members from state militias who were federalized and deployed to the border. This was the medal's main purpose—to recognize National Guard service that didn't qualify for the combat-oriented Mexican Service Medal.
Regular U.S. Army troops assigned to border patrol duty within the United States also qualified, provided they did not cross into Mexico or qualify for the Mexican Service Medal.
Unlike some service medals that required minimum periods of service, the Mexican Border Service Medal had no specified minimum duration. Presence and service during the qualifying dates was sufficient for eligibility.
The medal could be awarded posthumously to service members who died during their border service, providing their service met the standard eligibility criteria.
Because the medal was authorized in July 1918—after most border service had concluded and while many recipients were serving in World War I—the award applied retroactively to all qualifying service from 1916-1917.
The War Department organized the deployed National Guard forces into provisional divisions and stationed them at concentration points along the border. The largest and most sophisticated Guard organizations were assigned to areas considered most threatened.
National Guard units were stationed at designated "concentration points" established by the Department of War:
California also stationed National Guard units along its border with Mexico, though the vast majority of Mexican Revolution conflict occurred in regions adjacent to Arizona, New Mexico, and Texas.
National Guard units from virtually every state deployed to the border. The following represents the major state contributions:
Deployment: Approximately 17,000 personnel
Organization: 6th Division (later redesignated 27th Division)
Commander: Major General John F. O'Ryan
Location: Brownsville area (McAllen, Mission, Parr)
Units Deployed:
Significance: New York provided the largest, most sophisticated, and best-equipped National Guard force. As military historians noted, "The New Yorkers all by themselves could put a sizeable dent in the Mexican Army." The division headquarters at McAllen housed 10,000 soldiers and 3,500 horses and mules.
Deployment: 11,749 troops
Organization: 7th Division (later redesignated 28th Infantry Division)
Commander: Major General Charles M. Clement (first recipient of the Mexican Border Service Medal)
Location: El Paso area (Camp Stewart)
Units Deployed:
Notable Achievement: Pennsylvania conducted medical examinations around the clock and was able to dispatch one full regiment per day to the border. All 11,749 troops deployed between June 28 and July 9, 1916.
Deployment: Early mobilization on May 8, 1916
Location: Various Texas border stations
Strength: Approximately 5,000 troops (combined with Arizona and New Mexico)
Significance: Texas Guard units were among the first federalized and deployed, as they were already stationed near the border. However, Texas alone could not provide sufficient forces to patrol the entire border.
Units: Multiple infantry regiments
Notable Unit: 1st Ohio Cavalry (Troop A), which produced extensive photographic documentation of border service
Deployment: Complete division
Location: Texas border stations
Deployment: Division-strength force
Location: Various Texas stations
Deployment: Large state contingent
Challenges: Michigan faced significant logistical challenges in mobilizing and transporting its large force
Units: Multiple infantry regiments and support units
Deployment: Infantry and support units
Location: California-Mexico border
Units: Infantry and cavalry elements
Deployment: 800 troops
Mobilization Date: June 18, 1916
Arrival: Just 11 days after mobilization orders (June 29, 1916)
Location: Nogales, Arizona
Units:
Significance: Utah, having been a state for only 20 years, was eager to prove its commitment. Utah Guard units were noted for their competence and reliability. They were soon joined by Guard units from Idaho, Connecticut, and California at Nogales.
Units: 2nd Connecticut Infantry and other units
Location: Arizona border area
Advantage: As a small state, Rhode Island had fewer troops and facilities located close together, making mobilization more efficient than larger states
Advantage: Like Rhode Island, Delaware's small size made mobilization and coordination easier
Location: Nogales, Arizona area
Deployment: Early mobilization on May 8, 1916
Combined Strength: Approximately 5,000 troops (with Texas)
Location: Home state border regions
Nevada: The only state that did not contribute troops, as Nevada had no organized National Guard in 1916.
In addition to National Guard units, Regular Army forces that were not part of the Punitive Expedition also qualified for the Mexican Border Service Medal if they performed border patrol duty within the United States:
Upon arrival, National Guard units established extensive encampments. Local civic leaders often helped develop infrastructure, seeing the economic benefits of having thousands of troops stationed nearby. The camps included:
Between June 1916 and April 1917, the National Guard received intensive field training that proved invaluable when many of these same units deployed to France. Units from different states were sometimes grouped into large provisional formations, and officers gained crucial experience commanding large formations under field conditions.
The massive presence of National Guard troops along the border achieved its objective: cross-border raids dramatically decreased. The border mobilization represented a successful deterrent operation, preventing the Mexican Revolution's violence from repeatedly spilling onto American soil.
The Mexican Border Service Medal is a bronze medal measuring 1¼ inches in diameter with an oxidized, relieved finish that gives it a dark, antique appearance.
The obverse features a sheathed Roman sword (gladius) as its central and most distinctive element. The sword hangs vertically in the center of the medal, suspended over a tablet.
Behind the sword is a rectangular tablet inscribed with the words:
"FOR SERVICE ON THE MEXICAN BORDER"
The inscription is split with "FOR SERVICE ON" appearing to one side of the sword and "THE MEXICAN BORDER" on the other side.
Surrounding the tablet and sword is a laurel wreath contained within the raised edge of the medal. The wreath represents achievement and honors the distinction with which National Guard members served during this period.
The Roman sword (gladius) symbolizes war or military strength. The fact that it is sheathed is highly significant—it indicates military service within the United States in a defensive posture rather than offensive combat operations in foreign territory. This visual metaphor perfectly captures the nature of border patrol service: military readiness without deployment to combat.
The tablet design references the discharge certificates (diplomata) of Roman legionaries, which were made of bronze and displayed prominently in veterans' homes. This connection honors the service of citizen-soldiers (like the National Guard) following their return from federal service.
In Roman tradition, the laurel wreath symbolized victory and achievement. On this medal, it represents the achievement of successfully defending the border and the distinguished service of National Guard members during a critical period.
The reverse displays the Coat of Arms of the United States as its central element, positioned prominently at the top of the design.
Below the Coat of Arms appears an open scroll (unfurled ribbon), providing visual balance to the composition.
The Coat of Arms and scroll are surrounded by a wreath that terminates at the center bottom with three pairs of crossed weapons representing the three combat arms:
The Coat of Arms denotes service to the United States government in a federal capacity, as opposed to purely state militia service. This was particularly significant for the National Guard, whose dual state-federal status was clarified by the National Defense Act of 1916.
The crossed rifles, sabers, and cannons acknowledge that all three combat arms—infantry, cavalry, and artillery—participated in the border mobilization. Cavalry was particularly important for patrol operations across vast desert expanses.
As on the obverse, the wreath represents achievement and the distinguished performance of duty.
The medal is suspended by a ring from a mounting bar, which connects to the ribbon. This allows the medal to hang naturally when worn on the uniform.
The Mexican Border Service Medal was produced under private contract rather than by government mints. Various manufacturers produced the medals to military specifications.
The obverse of the medal was designed by Colonel John M. Taylor. The reverse was designed by Rudolf Freund of Bailey, Banks & Biddle (the same reverse used on the Spanish War Service Medal). The medal was sculpted by John R. Sinnock of the Philadelphia Mint.
The ribbon for the Mexican Border Service Medal measures 1? inches in width and 1? inches in length and is composed of silk moiré material with its characteristic wavy, water-like pattern.
Unlike the five-stripe pattern of the Mexican Service Medal ribbon, the Mexican Border Service Medal ribbon features a simpler three-stripe vertical pattern:
The pattern creates a bold central yellow stripe flanked by two equal green stripes.
The ribbon colors—green and golden yellow—deliberately match colors used in the Mexican Service Medal ribbon. This visual connection signifies that both medals commemorate service related to the same historical period and theater of operations (the Mexican border region), even though they recognize different types of service.
Emerald Green: Symbolizes freedom. In the context of border service, this represents the protection of American freedom and territorial integrity.
Golden Yellow: Represents virtue. Combined with green, these colors symbolize civic virtue through service to the government in the pursuit and preservation of freedom.
The ribbon design and color symbolism deliberately echoes the Spanish War Service Medal ribbon, which also featured green and yellow stripes. This connection honors the tradition of National Guard service in defense of American interests.
The medal with ribbon is worn suspended above the left breast pocket on dress uniforms and service uniforms when the wearing of medals (rather than ribbon bars) is prescribed.
A ribbon bar measuring 1? inches wide and ? inch tall, displaying the same three-stripe pattern, is worn on service uniforms when ribbon bars (rather than full medals) are prescribed for wear.
A miniature version with proportionally smaller ribbon is authorized for wear with formal attire such as mess dress uniforms.
Unlike some campaign medals, no devices of any kind were authorized for the Mexican Border Service Medal. This means:
The Mexican Border Service Medal was a one-time decoration. Service members who served multiple tours or extended periods on the border received only one medal, with no additional devices to denote extended service.
The absence of devices reflected the nature of border patrol service—it was considered a continuous operation of border security rather than distinct campaigns or battles that would warrant campaign stars or clasps.
In the official U.S. military order of precedence for campaign and service medals, the Mexican Border Service Medal is positioned directly after the Mexican Service Medal:
Congress created a similar award specifically for members of the Texas National Guard who served on the border during a later period. The Texas Cavalry Medal was authorized for Texas Guard members who served on the border between December 8, 1917, and November 11, 1918 (the end of World War I).
The Texas Cavalry Medal recognized continued border service during a period that fell outside the eligibility dates for the Mexican Border Service Medal, acknowledging that border security remained important even as most National Guard units deployed to France.
The 1916 border mobilization represented a watershed moment in National Guard history. As historian Charles H. Harris and Louis R. Sadler wrote in their book "The Great Call-Up: The Guard, the Border, and the Mexican Revolution":
"Between June 1916 and April 1917 the guard received intensive field training. Units from different states were sometimes grouped into large provisional units. Not only did the men become more proficient, but many officers gained invaluable experience commanding large formations. At the same time the guard was receiving badly needed equipment and supplies. The great call-up transformed the national guard into a much more effective fighting force, for it was as close as the United States came to the large-scale military maneuvers in which European armies traditionally engaged."
The border mobilization proved to be excellent preparation for World War I. Many of the same National Guard divisions that served on the border deployed to France:
As Major General John O'Ryan of New York noted, the months on the border "taught the officers and men of the New York National Guard how to soldier and paved the way for their success in Belgium and France."
The border mobilization provided crucial lessons in:
The 1916 mobilization occurred in conjunction with the National Defense Act of 1916, which fundamentally restructured the National Guard and clarified its role as the primary reserve force of the U.S. Army. The border service represented the first large-scale test of this new framework.
As noted by Pennsylvania National Guard historians: "While today's National Guard seamlessly integrates with active duty counterparts, it was an untried concept in 1916. Prior to then, National Guard troops stayed as a unit when serving in a federal capacity such as the Civil War. This operation represented the first time that National Guard troops and their active-duty counterparts were comingled to form larger units."
The presence of 110,000 troops dramatically affected border communities. Cities like El Paso saw their populations double. Municipal leaders invested in infrastructure, seeing the economic benefits of hosting military encampments. This created lasting relationships between military installations and border communities.
The mobilization brought together National Guard units from across the country, many experiencing their first extended deployment and first travel to the American Southwest. This fostered national unity and shared experience among citizen-soldiers from different regions.
The following official documents provide authoritative information on Mexican Border Service Medal eligibility:
Researchers seeking to verify eligibility should consult:
Each state maintains National Guard historical records, which may include:
The Center provides resources including:
Many states maintain military museums with border mobilization exhibits:
Family historians researching ancestors who may have received the Mexican Border Service Medal should:
The Mexican Service Medal was awarded for service IN Mexico or in combat operations against Mexican forces. The Mexican Border Service Medal was awarded for border patrol duty WITHIN the United States. The two medals were mutually exclusive—you could not receive both.
National Guard members and Regular Army personnel who served along the U.S.-Mexico border between January 1, 1916, and April 6, 1917 (for Border Patrol service) or between May 9, 1916, and March 24, 1917 (for general border service), and who did not qualify for the Mexican Service Medal.
The sheathed Roman sword symbolizes military strength held in reserve—defensive service within the United States rather than offensive combat operations in foreign territory. It perfectly represents the nature of border patrol duty.
Approximately 110,000 to 150,000 National Guard and Regular Army troops were deployed to the Mexican border between June 1916 and early 1917, representing virtually every state except Nevada.
The medal was authorized by Act of Congress on July 9, 1918, after many of the recipients were already serving in France during World War I. The first medal was issued to Major General Charles M. Clement of Pennsylvania on July 16, 1919.
No. The Mexican Border Service Medal was a one-time decoration with no devices, campaign stars, or additional awards authorized, regardless of length of service or number of operations.
The green and yellow colors match those used on the Mexican Service Medal ribbon and symbolize civic virtue through service to the government in pursuit of freedom. Green represents freedom, while yellow represents virtue.
Yes, many of the same National Guard divisions that served on the border deployed to France in 1917-1918. For example, New York's 27th Division and Pennsylvania's 28th Division both became major combat formations in the American Expeditionary Forces.
Yes. Next of kin can apply through the appropriate military service's medals and awards branch with documentation of eligible border service, such as military service records or National Guard orders.
Texas, Arizona, and New Mexico National Guard units were the first federalized on May 8, 1916. For the mass mobilization, New York's 7th Regiment was the first unit to reach the Texas border on July 2, 1916.
2025 Update: The Mexican Border Defense Medal (MBDM) is a new U.S. military award established in August 2025 and first presented in December 2025, recognizing service members supporting Customs and Border Protection on the U.S.-Mexico border since January 20, 2025, requiring 30 days of qualifying service within 100 nautical miles of the border; it's an identical replica of the 1918 Mexican Border Service Medal and signifies the border as a core homeland defense mission.
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