Myanmar Resistance Fighters Deploy Extended-Range 120mm Mortar, Testing Army Positions in Kayah State
Armed groups linked to Myanmar’s Karen forces have been documented using an uncommon 120mm BA-97 extended-range mortar system against Burmese Army positions in Kayah State. The appearance of heavier, longer-range indirect fire in this contested region adds danger for frontline communities and signals a continued militarization of the country’s patchwork resistance.
New footage from Myanmar’s conflict zones shows fighters affiliated with Karen forces employing a relatively rare 120mm BA-97 extended-range mortar system against government positions in Kayah State, signaling an incremental upgrade in the firepower available to the country’s resistance. The deployment of such systems matters because it brings heavier, longer-range indirect fire into a region already under severe strain from ground combat and displacement.
The material, shared by independent weapons-tracking observers, depicts resistance fighters operating the BA-97 (also known as the MA-6 MK II) 120mm mortar and loading it with 120ER / HE MK2 extended-range mortar bombs. These munitions offer a significantly longer reach than standard mortar rounds, allowing crews to strike Burmese Army positions from further away while remaining less exposed to counter-fire. The geolocation of the footage points to operations in Kayah State, an area that has seen intense clashes between the military and a mix of ethnic armed organizations and local defense forces.
For civilians in and around affected areas of Kayah, the introduction of longer-range mortars increases the radius within which shells can fall, even when front lines appear relatively distant. Villages, roads, and ad hoc displacement camps situated between resistance and military positions risk coming under fire simply because both sides can now engage each other from farther out. When indirect fire systems proliferate, safety is no longer just about proximity to a trench or checkpoint; it becomes a question of being anywhere within an expanding arc of potential impact.
On the battlefield, the use of extended-range mortars reflects an adaptation by anti-junta forces seeking to offset the Myanmar military’s advantages in artillery and air power. By firing from concealed or dispersed positions at greater standoff distance, armed groups can harass army outposts, supply lines, and temporary encampments while making it harder for government forces to pinpoint and overrun their firing points. This imposes additional strain on the Tatmadaw’s already stretched units, which must defend more installations against more sophisticated indirect threats.
The appearance of systems like the BA-97 also raises questions about supply chains and external support. Such mortars and their extended-range munitions are not improvised weapons; they require industrial production and some form of organized distribution. Whether they are captured, smuggled, or procured through opaque networks, their presence suggests that Myanmar’s resistance is gaining access to more standardized heavy weaponry—a trend that can prolong and intensify conflict once established.
Strategically, the spread of heavier indirect fire capabilities into places like Kayah State complicates any future attempt to stabilize the country. Each new system fielded by resistance groups is another asset they will be reluctant to surrender in the absence of strong security guarantees or meaningful political change. For the junta, facing adversaries who are both more mobile and better armed increases the temptation to rely on airstrikes and heavy bombardment, tactics that have already taken a devastating toll on rural communities.
Key indicators to watch will include whether similar mortar systems begin appearing in other active theaters such as Karen or Chin states, how frequently such weapons are used in documented engagements, and whether the military adapts with new counter-battery tactics or technology. The wider the spread of extended-range mortars across Myanmar’s patchwork of conflicts, the more difficult it becomes to contain the human and political fallout within any single region.
Sources
- OSINT