Thai Military Receives RCVs with 30mm Cannon Based on Estonian THeMIS Platforms

The Thai military has received D-Iron RCV ground robotic systems, built on Estonian THeMIS platforms and equipped with the Australian R400S combat module.

Nem shared the video on his X (formerly Twitter) account.

The footage captures Thai soldiers, likely undergoing training or familiarizing themselves with the RCVs, in a forested area.

The D-Iron RCV is a combat ground robotic system developed by the Thai Institute of Defense Technology in collaboration with the Estonian company Milrem Robotics and the Australian Electro Optic Systems.

Thai soldiers playing around with a THeMIS mounted with a 30mm R400S Mk.2 gun (D-Iron RCV). pic.twitter.com/lzG2zEpowW

— Нем? (@wuthi11_) January 14, 2026

The system is equipped with the EOS R400S Mk2 HD combat module, which features a 30mm M230LF cannon from Northrop Grumman.

Combat modules from the same manufacturer are also used on Ukrainian YPR-765 armored personnel carriers, but in a version with a 40mm automatic grenade launcher.

It is also reported that the Thai police tested the D-Iron RCV back in 2023.