The Israel Defense Forces (IDF) have officially inducted their first SIGMA 155 “Roem” self-propelled howitzers into service, marking a milestone in the modernization process of the Artillery Corps. The new system, developed and manufactured by the Israeli company Elbit Systems, has begun its operational integration phase following the handover ceremony held at the manufacturer’s industrial facility.
According to information released by the Artillery Corps itself and sources within the defense establishment, the SIGMA 155 “Roem” is intended to progressively replace the U.S.-origin M109 howitzers, known in Israel as “Doher,” which have remained in service for decades. In the meantime, these platforms will continue operating in reserve units, while regular forces concentrate their firepower on the new system.
During the official induction ceremony, the head of the Artillery Corps, Brigadier General Ehud Bibi, highlighted that the entry into service of the Roem represents a significant advance in the branch’s operational capabilities. Among the most notable changes is the reduction in crew size required for operation, from seven to three personnel, made possible by the incorporation of a fully automated loading system that eliminates the need for a manual loader.
From an operational standpoint, the SIGMA 155 “Roem” offers a firing range that doubles that of its predecessor and a rate of fire of up to eight rounds per minute. According to official data, this capability allows a single battery to generate a volume of fire equivalent to what previously required an entire battalion. In addition, the system is mounted on a wheeled platform, providing greater strategic and tactical mobility, as it can move along roads without the need for transporter vehicles.
The howitzer incorporates an advanced fire control system that integrates in real time with other IDF intelligence and strike units, enabling its insertion into the digital battlefield environment. This is complemented by the ability to resupply ammunition through the loading of a complete cassette in a single operation, reducing logistical timelines and the combat support footprint.
The first production unit was transported from Elbit Systems’ facilities to the Tze’elim base in southern Israel, where the induction and training process within the Artillery Corps began. This step continues a ground forces modernization program launched prior to October 2024, which also includes the introduction of the Eitan 8×8 wheeled armored combat vehicle and updated versions of the Merkava main battle tank.
In July 2024, the IDF had already previewed the system’s initial operational deployment through a video released on its official channels, showing trials under operational conditions of the 155 mm self-propelled howitzer, locally designated “HaRoem” and internationally known as “Roem.”
The induction of the SIGMA 155 “Roem” also fits within a broader trend of development and export of self-propelled artillery systems by the Israeli defense industry. In this context, platforms such as ATMOS and PULS, also developed by Elbit Systems, have recently been acquired by the armed forces of countries such as Denmark and Brazil, consolidating the presence of these systems on the international market.
*Images for illustrative purposes.
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