ATACMS
The MGM-140 ATACMS — a HIMARS/MLRS-launched short-range ballistic missile, fielded since Desert Storm and the backbone of US deep-strike fires — now a critical enabler in Ukraine’s long-range campaign.
The US Army’s road-mobile, short-range ballistic missile — fired from HIMARS and MLRS launchers to strike rear-area targets out to 300 km — and a key deep-strike enabler in the war in Ukraine.
Overview
The MGM-140 Army Tactical Missile System (ATACMS) is a solid-fuel, quasi-ballistic short-range ballistic missile produced by Lockheed Martin. It entered service in 1990 and first saw combat during Operation Desert Storm in 1991. The missile is carried, one to a pod, by the M142 HIMARS and M270 MLRS families, and provides ground forces with deep, precision fires against high-value targets such as command posts, air-defense sites, logistics hubs and airfields. Originally fielded with a cluster-munition warhead, the family gained a unitary-warhead variant in the 2000s and has been continuously upgraded. Although the United States is transitioning to the longer-range Precision Strike Missile (PrSM), ATACMS remains in service with the US Army and several allies, and has been supplied to Ukraine, where it has reshaped the long-range strike dynamic.
Development
Lockheed Martin developed ATACMS to replace the MGM-52 Lance battlefield missile and provide the US Army with a deep-strike capability that could be launched from the same tracked and wheeled launchers used for the MLRS rocket family. The original Block I missile (M39) carried 950 M74 anti-personnel/anti-materiel (APAM) submunitions and had a range of approximately 165 km, according to CSIS Missile Threat. Subsequent blocks introduced GPS-aided inertial guidance and extended range. The Block IA (M39A1) reached roughly 300 km with a reduced submunition load, and the Block II (cancelled) would have carried Brilliant Anti-Tank (BAT) submunitions. The most important operational shift came with the quick-reaction unitary variants — M48 and M57 — which mounted a single 227 kg high-explosive warhead, giving ground commanders a precision-strike option without the postwar contamination concerns of cluster munitions.
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