Japan’s military has initiated trials of two advanced unmanned ground vehicles (UGVs) — the Rheinmetall Mission Master SP and Milrem THeMIS — to evaluate their performance in multiple operational scenarios. The program reflects the Japan Ground Self-Defense Force’s (JGSDF) increasing focus on automation and robotics as it modernizes its ground combat capabilities.
The trials are part of a broader effort to offset manpower constraints and maintain readiness amid Japan’s declining population and evolving regional threats. Defense officials emphasized that promoting automation and labor-saving solutions through unmanned systems like UGVs is now a strategic priority. Both European-made platforms were acquired in 2024, with three units of each vehicle delivered to support comprehensive testing.
The Mission Master SP — a compact, all-electric UGV — offers modular architecture and amphibious capability. It can be reconfigured within minutes for roles such as logistics transport, surveillance, or remote weapon support, and operates quietly at up to 40 km/h on land or 6 km/h in water. Designed for tactical flexibility, it can carry payloads of up to 1,000 kilograms, enhancing its value for multi-mission operations.
The Milrem THeMIS, on the other hand, is a robust tracked vehicle capable of operating continuously for up to eight hours. With a top speed of 20 km/h, it can mount a wide range of armaments, from machine guns to anti-tank missiles, giving it strong adaptability for both support and combat missions. Its payload capacity ranges from 750 to 1,200 kilograms, providing significant lift for cargo or weapon systems. These evaluations signal Japan’s commitment to integrating autonomous ground systems as part of a long-term strategy to strengthen operational endurance and reduce risks to personnel.
