Philippine Army Fires with New ATMOS 155mm Howitzer in First Live Fire Boosting Long-Range Strike.

The Philippine Army has conducted its first live firing with its new Israeli-made ATMOS 155mm wheeled self-propelled howitzer during Exercise Salaknib 26, a joint U.S./Philippines military exercise, bringing a faster and more mobile long-range strike capability into frontline operations. Its debut during Exercise Salaknib 26 matters because it strengthens combined U.S.-Philippine combat readiness and gives Manila a more credible artillery response in a contested battlespace.

The Israeli-designed system pairs 155mm firepower with wheeled mobility, allowing units to shoot, reposition quickly, and stay harder to target. That makes it a practical asset for dispersed operations, rapid reinforcement, and modern battlefield survivability as regional forces push to improve deterrence and operational flexibility.

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Philippine Army soldiers from the Army Artillery Regiment “King of Battle” fire ATMOS 155mm truck-mounted self-propelled howitzers during Exercise Salaknib 26 at Fort Magsaysay Combat Readiness Training Area in Canantong, Nueva Ecija, Philippines, on April 16, 2026. (Picture source: U.S. Department of War)

Exercise Salaknib 26 is an annual bilateral training activity between the Philippine Army and the United States Army designed to enhance interoperability, improve combined arms operations, and strengthen military-to-military relationships. The exercise focuses on mission-critical capabilities, including artillery coordination, maneuver warfare, and command-and-control integration, directly supporting joint readiness and deterrence posture in the Indo-Pacific region.

The live-fire involved Philippine soldiers from the Army Artillery Regiment “King of Battle” operating alongside U.S. Army personnel from the 3rd Battalion, 7th Field Artillery Regiment, 25th Infantry Division. Conducted as part of the annual Salaknib exercise, the activity underscores growing interoperability and the integration of modern artillery systems into Philippine ground forces to strengthen deterrence and combat readiness in the Indo-Pacific theater.

The ATMOS is a 155mm/52-caliber truck-mounted howitzer that offers superior firepower, enhanced mobility, and rapid response times. Highly adaptable, the modular ATMOS system is compatible with any 6×6 or 8×8 high-mobility tactical truck. 

The ATMOS (Autonomous Truck-Mounted Howitzer System), developed by Elbit Systems, represents a significant leap in modernization for the Philippine Army’s indirect fire capability. Mounted on a 6x6 or 8x8 high-mobility truck chassis, the system integrates a 155mm 52-caliber gun capable of firing standard NATO ammunition to ranges exceeding 40 km, depending on projectile type. Its shoot-and-scoot capability enables rapid displacement after firing, reducing vulnerability to counter-battery threats, a critical requirement in high-intensity conflict environments.

The Philippine Department of National Defense signed the contract for the acquisition of the ATMOS system with Elbit Systems in 2020 as part of the Horizon 2 phase of the Armed Forces of the Philippines Modernization Program, with initial deliveries reported in 2022, enabling the progressive fielding of the system within artillery units prior to its first combat exercise employment in 2026.

During the Salaknib 26 live-fire sequence, Philippine crews executed emplacement, targeting, and firing procedures in coordination with U.S. forward observers and fire direction elements. This integration highlights the system’s compatibility with allied targeting networks and digital fire control systems, a key factor in coalition warfare. The presence of the U.S. 3rd Battalion, 7th Field Artillery Regiment, equipped with M777A2 towed howitzers, allowed for comparative operational alignment between wheeled self-propelled and towed artillery doctrines.

The introduction of ATMOS into Philippine service addresses longstanding gaps in mobility and survivability within its artillery forces. Unlike legacy towed systems, the ATMOS platform reduces setup and displacement times while maintaining high rates of fire, including burst and sustained modes. Its automated laying and navigation systems improve accuracy and reduce crew workload, enabling faster response cycles in dynamic battlefield conditions. These attributes are particularly relevant to the Philippine archipelago, where rapid repositioning across dispersed islands is essential.

Industrial and procurement aspects also reflect Manila’s broader defense modernization trajectory under its Revised Armed Forces of the Philippines Modernization Program. The acquisition of ATMOS systems aligns with efforts to transition toward more networked, mobile, and survivable combat platforms. The system’s compatibility with precision-guided munitions further expands the Philippine Army’s ability to conduct deep fires against high-value targets, a capability increasingly prioritized amid evolving regional security challenges.

Operationally, the successful first live firing during Salaknib 26 demonstrates that Philippine artillery units are progressing toward full operational capability with the ATMOS platform. The bilateral context of the exercise reinforces the importance of interoperability, particularly in coordinating fires, logistics, and command-and-control structures with U.S. forces. This development complements ongoing joint training initiatives and supports the broader objectives of the U.S.-Philippine alliance to maintain a credible and responsive deterrent posture.

As regional tensions continue to shape force planning in Southeast Asia, the integration of advanced artillery systems, such as ATMOS, signals a shift toward more agile and lethal ground forces. The ability to deliver accurate, long-range fires while maintaining mobility enhances the Philippine Army’s capacity to respond to both conventional and asymmetric threats, reinforcing its role within a networked allied defense architecture.

Written by Alain Servaes – Chief Editor, Army Recognition Group
Alain Servaes is a former infantry non-commissioned officer and the founder of Army Recognition. With over 20 years in defense journalism, he provides expert analysis on military equipment, NATO operations, and the global defense industry.