A Lithuanian defense firm demonstrated last week how a remote-control system can transform any military vehicle into an autonomous ground platform, marking a potential shift in how NATO forces deploy unmanned systems on the battlefield. Ostara, a Vilnius-based developer of hybrid electric military vehicles, unveiled the technology during the Lithuanian Armed Forces’ Vanguard 2026 exercise at the Rūdninkai Training Area, where it was tested on modified wheeled and tracked platforms under simulated combat conditions. The system, which Ostara has been refining since 2020, allows operators to switch vehicles between manned and unmanned modes mid-mission—a capability that could address critical shortages of trained drivers in high-intensity conflicts while reducing exposure to enemy fire.
Why Lithuania’s Unmanned Vehicle Tech Could Reshape NATO’s Logistics
Ostara’s system, which integrates with existing vehicle architectures without requiring custom chassis, was developed in response to growing demand for modular defense solutions across Europe. According to a statement from the Lithuanian Ministry of National Defense, the technology was evaluated alongside other unmanned systems during Vanguard 2026, which included contributions from NATO’s Center of Excellence for Unmanned Systems based in Latvia. The exercise, which ran from June 10–24, focused on testing interoperability between allied forces’ emerging autonomous capabilities—a priority for NATO’s 2026–2030 defense roadmap.
The demonstration comes as Lithuania, a frontline NATO member bordering Russia’s Kaliningrad exclave, has accelerated its procurement of unmanned systems to bolster its rapid-reaction forces. In 2025, Vilnius announced a €120 million contract with Ostara for 50 hybrid-electric armored personnel carriers (APCs) equipped with optional autonomy modules, part of a broader push to electrify its armored fleet by 2028. The new remote-control system could extend that capability to older vehicles, potentially slashing retraining costs and logistical overhead for militaries facing budget constraints.
How Ostara’s System Works—and What It Can’t Do Yet
Unlike dedicated unmanned ground vehicles (UGVs) such as the U.S. Army’s Stryker Dragon or South Korea’s K101, Ostara’s platform relies on a modular kit that retrofits existing vehicles with sensors, AI-driven obstacle avoidance, and a command interface. During Vanguard 2026, the system was tested on a modified Boxer wheeled APC and a tracked Pandur II, both in use by Lithuanian and allied forces. However, Ostara’s CEO, Gintaras Žilinskas, clarified in an interview with Defence Blog that the technology is currently limited to line-of-sight operations and requires a dedicated operator for high-risk maneuvers.
“The system isn’t fully autonomous in the sense of ‘drop it and forget it,’” Žilinskas said. “It’s designed for semi-autonomous missions—think convoy security, perimeter defense, or resupply runs where human oversight is still critical.” The company is in discussions with NATO’s Science and Technology Organization (STO) to explore integration with allied networks, but no formal agreements have been signed. A spokeswoman for the STO confirmed that Lithuania’s proposal is under review as part of NATO’s Next Generation Logistics initiative, which aims to reduce troop exposure in high-threat environments.
What Happens Next: Testing, Standards, and Potential Export Bans
The Lithuanian Armed Forces have scheduled additional trials in the fourth quarter of 2026, with a focus on integrating Ostara’s system into NATO’s Allied Command Transformation (ACT) framework. However, the technology faces hurdles beyond technical performance. The European Union’s Defence and Security Capabilities Act (DSCA), enacted in 2024, imposes strict export controls on unmanned systems capable of operating beyond line-of-sight—a category Ostara’s current model does not yet meet. Žilinskas acknowledged that future iterations may require EU-level certification, which could delay deployments to non-EU NATO members like Turkey or the U.S.
Meanwhile, Russia’s invasion of Ukraine has intensified scrutiny over unmanned systems’ role in modern warfare. Ukrainian forces have deployed commercial drones and retrofitted UGVs with explosive payloads, raising ethical and legal questions about autonomous targeting. A 2025 report by the International Committee of the Red Cross (ICRC) warned that “the rapid proliferation of semi-autonomous systems risks eroding accountability in conflict zones.” Lithuania’s Ministry of Defense has not yet commented on whether Ostara’s technology will be deployed in Ukraine, but a senior official told Reuters that “any transfer of unmanned capabilities to the battlefield would be subject to strict legal review under EU and NATO protocols.”
The next critical phase for Ostara’s system will be its inclusion in NATO’s Unmanned Systems Roadmap Update**, scheduled for adoption at the alliance’s December 2026 summit in Brussels. If approved, the technology could become a model for other European defense firms grappling with how to balance autonomy with the political and ethical constraints of modern warfare.
