Korean DMZ veterans who meet the service criteria receive the full VA Agent Orange presumptive conditions list under 38 CFR § 3.307(a)(6)(iv) — the same list as Vietnam-era veterans. This includes cancers, ischemic heart disease, Parkinson's disease, type 2 diabetes, and all conditions added by the PACT Act of 2022. If you served in Korea during the qualifying period in a qualifying unit, you do not need a nexus letter or direct proof of herbicide exposure.
The Korean DMZ defoliation program is one of the lesser-known chapters of the herbicide era. In 1968, U.S. and South Korean forces undertook an extensive vegetation-clearing operation along the southern edge of the Demilitarized Zone. The purpose was tactical: eliminating the dense vegetation along patrol routes and the DMZ perimeter that concealed North Korean infiltrators, who had been increasingly active following the January 1968 Blue House Raid (an assassination attempt on South Korean President Park Chung-hee) and the USS Pueblo seizure.
According to ATSDR and Department of Defense records declassified through years of research and FOIA litigation, herbicides sprayed along the Korean DMZ included commercial formulations such as 2,4,5-T and 2,4-D — the same compounds that comprised Agent Orange in Vietnam. The tactical-grade 2,4,5-T used during this period was contaminated with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), the highly toxic dioxin compound that is the primary toxic agent responsible for Agent Orange-related illnesses.
The defoliation program covered a strip approximately 151 miles (243 km) long along the southern edge of the DMZ, from coast to coast across the Korean peninsula, with treated areas extending up to one kilometer south into South Korean territory. U.S. Army units assigned to DMZ patrol duty walked through, camped in, and operated in these treated areas during and after the spraying operations. The spraying was conducted by both aerial and ground-based methods, and wind drift carried herbicide material beyond the intended target areas.
The U.S. military initially denied the extent of the Korean DMZ herbicide program. It was not until decades later, following persistent advocacy by Korean DMZ veterans and their service organizations, that VA formally acknowledged the exposure and established the regulatory framework entitling these veterans to presumptive benefits.
VA's recognition of Korean DMZ herbicide exposure evolved over several years:
Under 38 CFR § 3.307(a)(6)(iv), a veteran qualifies for the Korean DMZ Agent Orange presumptive benefit if they meet all of the following:
Notably, the regulation does not require that the veteran personally set foot on the DMZ or that they personally participated in defoliation operations. It requires that their unit was in the DMZ area. This is an important distinction — soldiers in support roles, administrative positions, or other functions within DMZ-area units still qualify if their unit meets the criteria.
Unlike many other Agent Orange claim scenarios, Korean DMZ veterans with qualifying unit service do not need to prove they personally handled, sprayed, or were directly exposed to herbicides. Unit-based service in the DMZ during the qualifying period is sufficient. This mirrors the Vietnam veterans' presumptive standard, which requires only service in the Republic of Vietnam — not proof of direct herbicide exposure.
VA maintains records confirming which U.S. Army units operated in the Korean DMZ area during the qualifying period. The following units (and their subordinate elements) are among those with confirmed DMZ operations:
| Unit | Notes |
|---|---|
| 2nd Infantry Division (2nd ID) | Primary DMZ security force; all subordinate brigades, regiments, and battalions |
| 7th Infantry Division | Operated in areas near the DMZ corridor; subordinate elements rotated through DMZ duty |
| 38th Infantry Regiment | 2nd ID subordinate unit; direct DMZ patrol operations |
| 9th Infantry Regiment ("Manchu") | 2nd ID subordinate; DMZ patrol and security operations |
| 23rd Infantry Regiment | 2nd ID subordinate; DMZ security operations |
| 1st Battalion, 31st Infantry | DMZ patrol operations 1967–1971 |
| 72nd Armor Regiment | 2nd ID armored element; DMZ area operations |
| 17th Infantry Regiment | 7th ID subordinate; near-DMZ operations |
| 32nd Infantry Regiment | 7th ID subordinate; near-DMZ operations |
| Military Police units (various) | Units assigned to DMZ security corridor operations |
| Engineer units (various) | Construction and barrier operations along DMZ perimeter |
| Aviation units (various) | Helicopter operations supporting DMZ surveillance and patrol |
This list is not exhaustive. VA evaluates each claim on its merits, and veterans whose units are not on any published list but who have evidence of DMZ-area operations during the qualifying period can still qualify. Artillery units, logistics units, medical units, and other support elements assigned to DMZ-area commands have successfully established eligibility.
If you are uncertain whether your unit qualifies, submit your claim and let VA research it. A denial based on lack of unit confirmation can be appealed with additional evidence. See also our guide to Agent Orange presumptive conditions for the full benefit context.
Korean DMZ veterans with qualifying service receive the complete Agent Orange presumptive conditions list. As of 2026 — after PACT Act additions — this list is extensive:
The Sergeant First Class Heath Robinson Honoring our Promise to Address Comprehensive Toxics (PACT) Act of 2022 added several conditions to the presumptive list for Agent Orange veterans — including Korean DMZ veterans. These additions are significant:
The addition of hypertension alone is enormously significant. Hypertension affects a large proportion of older veterans, and its addition to the presumptive list means Korean DMZ veterans with high blood pressure — in addition to any other condition — may now have a path to compensation that did not exist before 2022. See our PACT Act presumptive conditions guide for the full updated list.
Type 2 diabetes is among the most prevalent Agent Orange presumptive conditions. VA research has confirmed a statistically significant association between TCDD dioxin exposure and type 2 diabetes development. For Korean DMZ veterans with qualifying unit service, type 2 diabetes is fully presumptive — no nexus letter required, no need to prove the diabetes is related to herbicide exposure. If you have been diagnosed with type 2 diabetes and you served in a qualifying Korean DMZ unit between 1967 and 1971, file your claim now.
The PACT Act of August 2022 was the most significant expansion of VA benefits in decades. For Korean DMZ veterans, it had several direct impacts:
As noted above, hypertension, MGUS, and hypothyroidism were added to the presumptive list. Any Korean DMZ veteran who previously filed claims for these conditions and was denied should file a Supplemental Claim based on the change in law — there is no need to show new and relevant evidence when the legal standard itself has changed.
The PACT Act created a separate category of "toxic exposure" cancers with a broader presumptive framework. Korean DMZ veterans who develop certain cancers not previously on the Agent Orange list may now qualify under the PACT Act's expanded cancer provisions, even if those cancers are not specifically listed in the Agent Orange regulations.
The PACT Act improved Dependency and Indemnity Compensation (DIC) for surviving spouses of veterans who died from Agent Orange presumptive conditions. If a Korean DMZ veteran died from a qualifying condition and DIC was previously denied, surviving spouses should consider a Supplemental Claim based on PACT Act changes.
Veterans who previously received service connection but were assigned low ratings may benefit from requesting a re-evaluation, particularly for conditions where the PACT Act changed the medical criteria or created new secondary condition presumptives.
While the presumptive standard removes the requirement to prove personal herbicide exposure, you must still prove you served in Korea during the qualifying period in a qualifying unit. Here is how:
The National Personnel Records Center is the primary repository for military service records. You can request your records online at archives.gov (the eVetRecs system) or by submitting Standard Form 180 (SF-180) by mail. When requesting records for a Korea DMZ Agent Orange claim, specifically request:
A catastrophic fire at the NPRC in St. Louis in 1973 destroyed an estimated 16–18 million military personnel files, including records of Army veterans discharged between 1912 and 1960, and Air Force veterans discharged between 1947 and 1964. While most Korean-era records from 1967–1971 were not in the peak loss range, some records may have been affected. If your records are not found at NPRC, VA must give you the benefit of the doubt under the duty to assist provisions of 38 USC § 5103A. Alternative evidence (buddy statements, photographs, orders in your personal possession) becomes especially important.
Filing a Korean DMZ Agent Orange presumptive claim follows the same general process as other VA disability claims, with a few specific considerations:
When completing the claim, clearly state that you are claiming benefits under the Korean DMZ Agent Orange presumptive provisions (38 CFR § 3.307(a)(6)(iv)). Specify the dates of your Korea service, your unit assignment, and the qualifying condition(s) for which you are filing. This directs the claims processor to the correct regulatory framework from the beginning.
For context on the broader Agent Orange and PACT Act landscape, see our guides on Agent Orange presumptive conditions and Blue Water Navy Agent Orange benefits.
Many Korean DMZ veterans filed claims that were denied in the 1990s or 2000s — often because VA was not fully recognizing the unit-based eligibility standard, or because the claim was filed before the regulations were fully established. If you were previously denied:
A Supplemental Claim (VA Form 20-0995) allows you to reopen a denied claim by presenting new and relevant evidence. If you were denied due to lack of service records and you have since obtained records from NPRC, those records constitute new evidence. If you were denied because your condition was not yet on the presumptive list (e.g., hypertension added post-PACT Act), you can file a Supplemental Claim based on the change in law without needing new medical evidence.
Under the PACT Act, veterans who file claims for newly added conditions within one year of the Act's enactment (by August 10, 2023) may receive an effective date back to the date the Act was signed (August 10, 2022) — provided their condition existed at that time. If you filed within that window, your retroactive effective date may be August 2022, representing potentially years of back pay.
Medical Evidence for Korean DMZ Claims
While Agent Orange presumptive conditions don't require a nexus letter for service connection, medical evidence establishing the current diagnosis and its severity is essential for rating purposes. REE Medical provides comprehensive evaluations for veterans with Agent Orange-related conditions, including severity assessments that support appropriate disability ratings.
Learn About Medical Evaluations for Agent Orange Claims →claim.vet may receive a referral fee if you use this link. Veterans never pay more.
Editorial Standards: Written by Marcus J. Webb, veterans benefits researcher. Verified against 38 CFR § 3.307(a)(6)(iv), VA guidance, and PACT Act provisions. Last reviewed: July 2026. Not legal advice — for representation, consult a VA-accredited attorney.
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