From Soviet Guns to Indigenous Firepower: Vietnam Launches RTN-152 to Strengthen Defence Independence

(DEFENCE SECURITY ASIA) — Vietnam has taken a decisive step in strengthening its defence posture by debuting the RTN-152, its first indigenous 152mm wheeled self-propelled artillery system, built by Viettel High-Tech Industries.

Unveiled during a high-profile defence showcase, the RTN-152 signals Vietnam’s ambition to combine homegrown defence engineering with legacy Soviet firepower to reduce reliance on foreign suppliers and enhance strategic independence.

The RTN-152 is mounted on a Russian KamAZ-6560 8×8 military-grade truck, known for its ruggedness and ability to traverse Vietnam’s varied topography from lowland river deltas to mountain ranges.

The vehicle houses an armored crew cabin offering protection against small-arms fire and shrapnel, while its rotating turret carries the iconic Soviet-era D-20 152mm gun, reconfigured for mobile operations.

Weighing in at approximately 34 tons and operated by a crew of five to six, the RTN-152 integrates a modern fire control system that greatly improves targeting accuracy compared to legacy systems.

The gun retains its original firing profile, delivering shells to a range of 17 km with standard munitions and extending to 24 km with rocket-assisted projectiles—sufficient for counter-battery engagements and support of mechanized formations.

Although current models appear to rely on manual loading rather than an automated system, the simplicity ensures ease of maintenance and cost savings, while still providing the mobility advantages critical in 21st-century artillery warfare.

The RTN-152 is not an isolated development but part of a broader trend within Vietnam’s armed forces to adapt legacy artillery into mobile, wheeled systems.

Earlier, Viettel successfully introduced the PTH105, a truck-mounted derivative of the American M101 105mm howitzer, and the PTH130, based on the Soviet M-46 130mm gun.

These conversions allowed Vietnam to transform static towed artillery into mobile strike platforms capable of rapid deployment and repositioning, a doctrine designed to mitigate vulnerability to enemy counter-battery fire.

The RTN-152 continues this trajectory by upgrading the widely available D-20 inventories, thereby creating a cost-effective but strategically relevant artillery solution.

Vietnam’s unveiling of the RTN-152 coincides with its acquisition of South Korea’s advanced K9 Thunder 155mm self-propelled howitzers, which boast superior range, automation, and NATO-standard munitions compatibility.

While the K9 Thunder represents a leap in firepower, automation, and interoperability, the RTN-152 offers affordability, simplicity, and the ability to be produced domestically at scale.

This hybrid approach reflects Vietnam’s broader strategy: diversify sources, acquire cutting-edge foreign platforms, and simultaneously build a domestic industrial base that ensures long-term self-sufficiency.

In an era of global supply chain vulnerabilities and great-power competition, such a balanced procurement strategy shields Hanoi from overdependence on any single supplier.

Vietnam’s new artillery system enters a crowded Southeast Asian field where nations are investing heavily in modern fire support systems.

China, Vietnam’s most pressing rival in the South China Sea, fields the PCL-09 122mm and the more powerful PCL-181 155mm wheeled artillery systems, both of which combine high mobility with extended range and digital fire control.

Thailand has acquired Israel’s Atmos 2000 155mm truck-mounted howitzers, optimized for rapid deployment and precision fires, while Indonesia has invested in both Caesar 155mm systems from France and its own locally produced derivatives.

Against this backdrop, the RTN-152 offers Vietnam an economical solution to bolster numbers and maintain a competitive edge in artillery density, even if it falls short in automation or range compared to its regional rivals’ latest acquisitions.

Vietnam’s decision to unveil the RTN-152 is not merely a technical achievement but also a geopolitical signal.

As Chinese naval, air, and missile power expands aggressively in the South China Sea, Hanoi is strengthening its land-based deterrence posture, ensuring that any escalation would be met with credible firepower from mobile artillery units.

While howitzers like the RTN-152 may not directly counter naval forces, they provide a crucial defensive backbone against amphibious operations, coastal incursions, and land-based conflict scenarios in disputed territories.

The system’s ability to rapidly deploy and relocate across Vietnam’s coastline and border regions enhances survivability against precision strikes, a lesson learned from observing conflicts such as Ukraine, where mobile artillery has proven decisive.

Beyond battlefield implications, the RTN-152 underscores the growing role of Viettel High-Tech Industries in transforming Vietnam’s defence sector.

Traditionally known as a telecommunications conglomerate, Viettel has emerged as Vietnam’s primary defence technology developer, tasked with advancing indigenous radar, drones, and now artillery systems.

By successfully fielding the RTN-152, Viettel not only demonstrates engineering maturity but also positions Vietnam as a credible mid-tier defence producer in Southeast Asia, capable of exporting affordable and reliable systems to like-minded nations.

In the long term, an export-oriented defence industry could provide Vietnam with both strategic influence and economic benefits, strengthening ties with partners seeking cost-effective alternatives to Western or Chinese systems.

The unveiling of the RTN-152 also reflects lessons absorbed from the ongoing war in Ukraine, where artillery remains the dominant killer on the battlefield.

Mobile, truck-mounted systems have proven more survivable than static towed guns, allowing rapid displacement to evade enemy counter-battery fire and drones.

Vietnam’s adaptation of this doctrine shows its military leadership is paying close attention to global conflicts and integrating hard-earned lessons into its force structure.

By prioritizing mobility and cost-efficiency, Hanoi is preparing for scenarios where sustained attritional warfare may be unavoidable, particularly in the event of a prolonged conflict with a major power.

Despite its significance, the RTN-152 is not without limitations.

Its reliance on manual loading and older gun technology means it cannot match the firing rate, automation, or precision of advanced 155mm platforms like the K9 Thunder or France’s Caesar.

Furthermore, its maximum range of 24 km leaves it at a disadvantage compared to modern artillery capable of exceeding 40 km, potentially restricting its role in long-range engagements.

However, these drawbacks are offset by the system’s cost-effectiveness, ease of production, and ability to be fielded in large numbers—qualities that remain valuable in regional warfighting scenarios.

The RTN-152 is expected to undergo rigorous trials before entering full-scale production and integration into the People’s Army of Vietnam’s artillery brigades.

If successful, it could serve as the foundation for further indigenous developments, potentially including automation upgrades, longer-range barrels, and compatibility with precision-guided munitions.

The system’s development also strengthens Vietnam’s position in ASEAN, where nations are racing to modernize their militaries amid escalating great-power rivalries.

By combining imported high-tech systems with cost-effective domestic innovations, Vietnam is carving out a model of defence modernization that balances budgetary constraints with battlefield effectiveness.

Vietnam’s RTN-152 represents more than just a new artillery piece.

It is a statement of intent: that Hanoi will not sit idle in the face of shifting regional dynamics, but will instead harness its industrial base to strengthen sovereignty and resilience.

Amid South China Sea tensions, regional arms races, and lessons drawn from Ukraine, the RTN-152 embodies Vietnam’s determination to combine past experience with future ambition.

It may not be the most sophisticated system in the region, but it is uniquely Vietnamese—cost-effective, practical, and a clear sign that Hanoi is building the foundations of long-term defence self-reliance.

— DEFENCE SECURITY ASIA