The Southern Border Defense Medal (SBDM) is a commemorative U.S. military award established to recognize service members who participated in qualifying operations along the southern border of the United States. Eligibility is based on specific deployment periods, geographic criteria, and the nature of duties performed during border security operations.
It is important to note, this award is not to be confused with the U.S. military’s official Mexican Border Defense Medal (MBDM) which was established to recognize service members deployed to the U.S. international border with Mexico for Defense Department support to U.S. Customs and Border Protection.
The Southern Border Defense Medal carries significant meaning for the tens of thousands of service members who have been deployed to the U.S.-Mexico border in recent years and may not qualify for the MBDM. This post breaks down everything you need to know about the Southern Border Defense Medal.
What Is the Southern Border Defense Medal?
The Southern Border Defense Commemorative Medal is a military decoration created to honor U.S. service members who have contributed to border security and defense operations along the nation's southern border. It was established in response to large-scale military deployments to the U.S.-Mexico border, which significantly expanded under operations like Operation Faithful Patriot and subsequent border security missions.
The Southern Border Defense Medal acknowledges that border service—often involving demanding conditions, extended deployments, and complex operational environments—deserves formal military recognition. Prior to its creation, many service members who completed border assignments had no specific decoration to reflect that service on their records.
Who Is Eligible for the Southern Border Defense Medal?
Eligibility for the Southern Border Defense Medal is based on several key criteria. The general qualifications include the following:
Branch of Service
The Southern Border Defense Medal is available to members of all branches of the U.S. Armed Forces, including:
- Army
- Navy
- Marine Corps
- Air Force
- Space Force
- Coast Guard
- National Guard (when federally activated)
Reserve component members who are federally activated and deployed in support of qualifying border operations may also be eligible.
Geographic and Operational Requirements
To qualify for the Southern Border Defense Medal, a service member should have served within a designated area of operations along the southern U.S. border. This typically includes counties and regions in Texas, New Mexico, Arizona, and California that fall within the defined geographic boundaries established by the awarding authority.
Service should have been performed in direct support of border security or defense operations. Administrative or support roles performed far from the border area qualify.
Minimum Service Period
A minimum number of days of qualifying service is typically required. Based on guidance related to similar military awards, this threshold is often set at 30 consecutive days or 60 non-consecutive days within the designated area, but given this is a commemorative medal, the service period requirements vary.
Dates of Qualifying Service
The Southern Border Defense Medal covers service performed during specific operational periods. The award is generally associated with deployments beginning in late 2018, when large-scale military border operations commenced, and extending through subsequent mission phases. Exact start and end dates for qualifying periods are fluid since this is a commemorative medal.
How Does the Southern Border Defense Medal Differ from Other Awards?
Service members who deployed to the southern border may have received other awards, such as the Mexican Border Defense Medal or the Armed Forces Expeditionary Medal. The Southern Border Defense Medal is distinct in that it is commemorative in nature and it is not awarded by the federal government while the aforementioned awards issued by the federal government are official awards recognizing service on the U.S.-Mexico border.
The Southern Border Defense Commemorative Medal also differs from campaign medals, which are typically tied to overseas combat operations. Border service is conducted on U.S. soil, which historically placed it outside the criteria for many existing military decorations.
How to Acquire the Southern Border Defense Medal
There is no application process for the Southern Border Defense Medal. They can be purchased directly from USAMM. The medal cannot be worn on any official U.S. military uniform. However, if a service member believes they are eligible for the Mexican Border Defense Medal, they should follow these steps:
- Confirm eligibility by reviewing the official criteria published by your branch's personnel command or awards authority.
- Gather documentation, including deployment orders, DD-214 (for veterans), or service records that confirm dates and location of border service.
- Submit through your chain of command if you are still on active duty, or through your branch's records correction process if you are a veteran.
- Contact the National Personnel Records Center (NPRC) if your records do not already reflect qualifying border service. Veterans can request corrections through the Board for Correction of Military Records (BCMR) for their respective branch.
Processing times vary. Service members and veterans are encouraged to keep copies of all submitted documentation.
What If Your Border Service Isn't Reflected in Your Records?
This is a common issue. Many service members who completed border deployments before Mexican Border Defense Medal was formally established may find that their records don't automatically reflect eligibility. In these cases, veterans can request a review through their branch's awards and decorations office or pursue a correction of military records. Proof of border service is not required to purchase the SBDM since it is not an official U.S. military medal.
Frequently Asked Questions About the Southern Border Defense Medal
Below is a list of FAQs to help you in purchasing a SBDM.
Does the Southern Border Defense Medal apply to National Guard members?
Yes, National Guard members who were federally activated and served in a qualifying role within the designated border area during an eligible period can purchase the Southern Border Defense Medal. State activations without federal orders do qualify. But remember, the SBDM is a commemorative medal and not an official medal. If you believe you earned the MBDM, check with your unit. If you were on state orders and do not qualify for the MBDM, then the SBDM might be a good unofficial alternative.
Can veterans who have already separated from service purchase the Southern Border Defense Medal?
Yes. Veterans who believe they qualify can purchase the Southern Border Defense Medal through USAMM.
Does serving at a border installation automatically qualify a service member?
Not necessarily for the MBDM, but the Southern Border Defense Medal has no official requirements within a defined geographic area in direct support of border security operations. Being stationed near the border does not automatically meet the criteria for the MBDM—the service must fall within the specific operational and geographic parameters. But again, in regards to the SBDM, since it is a commemorative medal, there is no qualifying service that must be proven.
Is the Southern Border Defense Medal the same as a campaign medal?
No. The Southern Border Defense Medal is a commemorative service medal recognizing border security operations conducted on U.S. soil. Official U.S. military campaign medals are associated with overseas military campaigns and are governed by different criteria. They are also official U.S. government medals.
Make Sure Your Service Is Recognized
The Southern Border Defense Medal exists because border service is real service. Military awards aren't just decorations—they're a permanent reminder of where you served and what you contributed. Taking the time to purchase the Southern Border Defense Medal to ensure that contribution is never overlooked.