In the dense, damp forests of the Sēlija training site, the traditional sounds of mechanized warfare—the roar of diesel engines and the crunch of heavy treads—are being joined by a new, higher-pitched hum. Here, the Latvian “Iron Battalion” and their Canadian allies are conducting Crystal Arrow 2026, a large-scale exercise that marks a pivotal shift in NATO’s tactical evolution: the move to bring remote warfare down from the skies and onto the soil.
For decades, the drone revolution has been defined by the eye in the sky. But in the mud of Latvia, the focus has shifted to Uncrewed Ground Vehicles (UGVs). These machines, ranging from small, four-wheeled reconnaissance bots to larger systems resembling oversized shopping carts, are being integrated into the front lines to handle the most dangerous tasks of combat. The goal is simple but stark: replace human risk with replaceable hardware.
The exercise, which involves approximately 2,500 troops and 500 pieces of equipment, is more than a routine drill. It represents a stunning reversal of traditional military mentorship. NATO forces, long the teachers of global security, are now the students, absorbing lessons from Ukrainian veterans and tech startups who have spent years refining autonomous warfare in the crucible of the Donbas and Kharkiv.
The Shift to the Soil
Lt.-Col. Andris Bruveris, commander of the Second Mechanized Infantry Battalion, sees the integration of UGVs not as a luxury, but as a necessity. In the current landscape of electronic warfare and high-precision artillery, sending a human soldier into an unknown treeline is often a gamble with unacceptable odds.
“I’m using these ground drones in this exercise for executing different types of missions, starting from intelligence, continuing with the kinetic effects against the enemy, and of course sustainment operations, resupply operations, casualty evacuations,” Bruveris said. His philosophy is grounded in the brutal arithmetic of modern conflict: “I believe that these unmanned systems are the future because one way or the other, it’s cheaper than people’s lives.”
While aerial drones (UAS) provide the map, ground drones provide the reach. By utilizing UGVs for reconnaissance and resupply, commanders can maintain operational tempo without exposing their infantry to initial ambushes or minefields. However, the transition is not seamless. NATO’s traditionally rigid command structures are struggling to incorporate these agile, rapidly evolving technologies into a standardized “way of doing business.”
Comparing the Uncrewed Ecosystem
| System Type | Primary Role in Latvia | Strategic Value | Human Risk |
|---|---|---|---|
| UAS (Aerial) | Surveillance & Strike | Wide-area visibility | Low (Remote) |
| UGV (Ground) | Intel, Logistics, MedEvac | Direct battlefield presence | Low (Remote) |
| Traditional Infantry | Hold & Secure Terrain | Complex decision making | High (Direct) |
The Friction of Automation
The optimism found at the Sēlija training site stands in sharp contrast to a brewing political storm in Riga. The dangers of uncrewed systems are not just found in their potential for destruction, but in their susceptibility to manipulation. Last week, two Ukrainian strike drones, purportedly on a mission over Russia, veered off course and smashed into a Latvian oil storage depot.
The incident triggered a swift political collapse. Latvia’s Prime Minister demanded the resignation of Defence Minister Andris Sprūds, citing a failure to deploy anti-drone systems quickly enough to prevent the incursion. While no one was injured, the event served as a visceral reminder of how electronic warfare (EW) can turn a weapon into a liability.
Ukraine’s foreign ministry suggested that Russian EW interference deliberately diverted the drones into Latvian territory—a claim Russia has denied. If true, it demonstrates a sophisticated ability to weaponize an opponent’s own technology against a neutral neighbor. For Sprūds, the resignation felt like a political campaign. for NATO, it was a cautionary tale about the fragility of autonomous navigation in a contested electromagnetic environment.
The NATO Adaptation Gap
There is a growing divergence in how military leaders view the “dawn of the new age of warfare.” Ukrainian President Volodymyr Zelenskyy recently claimed that a localized offensive was conducted using both aerial and ground drones with no human involvement—a claim that some experts view with skepticism but which signals a move toward full autonomy.
Within the NATO framework, however, there is a preference for “complementary” systems. Canadian Lt.-Col. Dan Richel, deputy commander of the Latvian Brigade, argues that while UGVs are a vital addition, they are not yet a replacement for the soldier on the ground.
“I do see UAS and the UGV as complementary systems,” Richel said. While he envisions a future where these machines perform independent operations, the current doctrine remains focused on the human-in-the-loop model to ensure accountability and precision.
This gap in adaptation is being addressed through urgent upgrades. Claudio Palestini, Head of NATO’s innovation and technology adoption section, noted that the alliance is conducting a series of tests to improve the efficiency of interceptor networks. Similarly, Canada has begun deploying counter-drone systems at major naval ports and airbases to guard against the very threats being simulated in the Latvian forests.
As Mubin Shiekh of the tech company CTRL observes, the world is moving toward a reality of “autonomous warfare” that encompasses not just the air and land, but submersible vehicles as well. The race is no longer just about who has the best drone, but who can best defend against one.
The Crystal Arrow 2026 exercises are scheduled to continue until May 15, serving as a critical testing ground for these technologies. The next phase of the exercise will focus on integrating these UGVs into larger combined-arms maneuvers, testing whether the “Iron Battalion” can truly synchronize human intuition with robotic persistence before the next real-world crisis emerges.
Do you believe autonomous systems will eventually replace front-line infantry, or will they always remain secondary tools? Share your thoughts in the comments below.
