Sweden receives first M3 amphibious system for rapid deployment across water obstacles.

On November 19, 2024, General Dynamics European Land Systems (GDELS) delivered the first M3 amphibious bridge and ferry system to the Swedish Defence Materiel Administration (SDMA) at a handover ceremony in Kaiserslautern, Germany. This delivery marks the initial stage of a contract to supply Sweden with a total of twelve M3 systems, known locally as "Amfibiebro 400." The agreement also includes additional equipment for Sweden's existing Improved Ribbon Bridge (IRB), known as "Däcksbro 300," to enhance compatibility between the two systems.
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The M3 amphibious system was central to the NATO Anakonda 2016 exercise, during which a combined German and British unit constructed a 350-meter floating bridge over the Vistula River in 35 minutes. (Picture source: US DoD)

The M3 amphibious bridge and ferry system is designed for rapid deployment and can be used as either a bridge or a ferry. It is capable of supporting vehicles up to MLC 85 (tracked) and 132 (wheeled), including heavy main battle tanks like the Leopard 2 and M1A2 Abrams. The system’s modular design allows for quick assembly, with a maximum setup time of 10 minutes for a 100-meter bridge, and interoperability with other bridging systems, such as the IRB and SRB (Standard Ribbon Bridge). This interoperability is facilitated by coupling adapters, ensuring the M3 can function seamlessly alongside other NATO-standard equipment.

The Swedish Army’s acquisition of the M3 will enable it to negotiate obstacles up to 400 meters wide when the full fleet is operational, aligning Sweden’s capabilities with NATO allies like Germany and the United Kingdom, which also operate the M3 system. Sweden’s decision to adopt the M3 follows earlier testing of the system in Arctic conditions. While financial constraints and shifting priorities delayed initial procurement, these tests contributed to the development of a version tailored for northern climates.

The M3 is powered by a diesel engine, providing a range of up to 750 kilometers on land and a top speed of 80 kilometers per hour. For water operations, the system is propelled by pump jets, reaching speeds of up to 14 kilometers per hour. Its pontoons, which deploy from the vehicle’s sides, enable amphibious operation. The system requires a crew of two to operate, due to automation features aimed at reducing manpower requirements.

In addition to its Swedish deployment, the M3 is in service with various NATO and allied nations, including Germany, the United Kingdom, Canada, the United States, South Korea, the Netherlands, Brazil, and Australia. It has been used in both exercises and operational contexts, such as the Iraq War, where British forces utilized the M3 during river crossings at the Shatt Al-Basrah waterway and Rumaila oil fields. The system was also central to the NATO Anakonda 2016 exercise, during which a combined German and British unit constructed a 350-meter floating bridge over the Vistula River in 35 minutes.

The procurement of the M3 aligns with Sweden’s recent accession to NATO and reflects its focus on enhancing interoperability with alliance members. Deliveries of the systems are expected to continue, with the potential for additional units under options included in the contract. This acquisition supports Sweden's goal of improving its gap-crossing capabilities and operational readiness in line with NATO standards.