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Asymmetric WarfareApril 2026 · 8 min read

Democratising Lethality: How Cheap Drones Let Small Actors Change the Outcome of Wars

For centuries, the decisive application of military force was the domain of well-funded nation states. Commercial drone proliferation has fundamentally broken that equation, and the consequences are reshaping conflicts across the globe.

There is a concept in military theory called the "offset strategy," the idea that a technologically superior force can achieve decisive advantage by exploiting capabilities that an adversary cannot match or afford to counter. For much of the twentieth century, this logic favoured wealthy, industrialised nations. Precision munitions, stealth aircraft, network-centric warfare, these were the exclusive tools of those who could pay for them.

Drone proliferation has inverted this logic. The offset now belongs to the attacker. A motivated non-state actor, insurgent group, or under-resourced military can acquire commercially available unmanned systems for hundreds of dollars, modify them for lethal effect, and deploy them against adversaries whose defensive systems cost orders of magnitude more. The cost exchange ratio, always the critical variable in sustained warfare, has shifted in ways that established military powers are only beginning to fully reckon with.

Nagorno-Karabakh: The First Drone War

The six-week war between Azerbaijan and Armenia in autumn 2020 over the disputed Nagorno-Karabakh region is widely regarded as the first conflict in which drone warfare proved genuinely decisive at the operational level. The outcome, an Armenian military collapse and territorial capitulation that ended a decades-long stalemate, cannot be understood without understanding the role unmanned systems played.

Armenia's military was equipped with Soviet-era equipment, including air defence systems designed to detect and engage high-flying, high-speed aircraft. Azerbaijan deployed two types of unmanned systems that exploited the gaps in this architecture with devastating effect.

The first was the Bayraktar TB2, a Turkish-manufactured medium-altitude long-endurance (MALE) drone carrying laser-guided munitions. The TB2 flew above the ceiling of many Armenian man-portable air defence systems (MANPADS) while remaining below the radar horizon of the legacy surface-to-air missile systems designed for conventional air threats. It could loiter over the battlefield for hours, identify armoured vehicles, artillery positions, and logistics convoys, and engage them with precision strikes at minimal cost per sortie.

The second was the Israeli-manufactured Harop loitering munition, an autonomous "kamikaze" drone that homes in on radar emissions. Armenian air defence batteries, by activating their radar systems to track Azerbaijani drones, made themselves targets for the Harop. The choice became: switch off the radar and lose situational awareness, or keep it on and be destroyed. It was a trap with no exit.

The results were catastrophic for Armenia. Azerbaijan released extensive footage of drone strikes destroying T-72 tanks, Osa air defence systems, artillery batteries, and troop concentrations. The Armenian military, unable to effectively contest the airspace or protect its ground forces from above, was rendered operationally paralysed. A stalemate that had held for twenty-six years ended in forty-four days.

The Nagorno-Karabakh conflict demonstrated that medium-altitude drone operations, combined with loitering munitions, could suppress and defeat an integrated air defence network at a fraction of the cost of conventional fixed-wing operations. For any military still investing primarily in Cold War-era ground force structures without a credible answer to the drone threat, it was a warning that most failed to heed quickly enough.

The Houthis and the $500 Problem

In September 2019, a coordinated attack on the Abqaiq and Khurais oil processing facilities in Saudi Arabia temporarily knocked out approximately five per cent of global oil supply, the single largest disruption to oil production in history. The attack was attributed to Iran-backed Houthi forces in Yemen, using a combination of cruise missiles and drones.

The significance of the attack was not merely its immediate effect. It was the demonstration that a non-state proxy force, operating with Iranian technical support but with limited resources compared to any conventional military, could achieve a strategic effect, disrupting global energy markets, that would previously have required a substantial nation-state military capability.

The Houthis subsequently extended their drone and missile campaign to target commercial shipping in the Red Sea from late 2023, forcing major shipping companies to reroute vessels around the Cape of Good Hope, adding thousands of miles and significant cost to global freight. A US-led naval coalition deploying advanced surface warships and carrier air power found itself in the deeply uncomfortable position of expending SM-2 and SM-6 missiles costing between $US1 million and $US4 million per round to intercept drones costing a few thousand dollars each. The cost exchange ratio was unsustainable.

This is the asymmetry that drone proliferation has created. Defending against massed, low-cost drone attacks with high-cost precision interceptors is economically untenable over time. The attacker gets to choose the engagement geometry. The defender must respond or accept the hit.

ISIS, Hamas, and the Commercialisation of Drone Warfare

Before state and near-state actors demonstrated the strategic potential of purpose-built military drones, non-state actors were already experimenting with commercial off-the-shelf technology. Islamic State in Iraq and Syria was among the earliest adopters, using modified commercial quadcopters to drop 40mm grenades on Kurdish and Iraqi positions in Mosul from as early as 2016. The drones were DJI Phantoms. The modifications required basic engineering skills. The effect was to extend the group's ability to strike at range and conduct real-time ISR despite lacking any conventional air capability.

Hamas demonstrated more sophisticated integration of drone technology during the October 2023 attacks on Israel. Commercially available drones were used to disable Israeli remote-controlled weapon stations along the Gaza perimeter fence, precision attacks on specific systems that required detailed prior reconnaissance and targeting. The use of relatively simple technology to degrade a sophisticated defensive network in the opening minutes of a complex operation illustrated how thoroughly drone capability had diffused to actors operating with limited budgets and no formal military-industrial complex.

Ukraine has taken this further still. Both sides have built industrial-scale FPV drone programmes, with Ukraine alone claiming to have manufactured over a million FPV drones domestically in 2024. These platforms, costing as little as $300–$500 each, have become the primary means of engaging personnel and light vehicles at close range, displacing the role previously played by indirect fire in many tactical situations. The drone has not merely supplemented conventional weapons, in certain mission sets it has replaced them.

What This Means for Conventional Military Forces

The cumulative lesson of these conflicts is uncomfortable for established military powers. Capabilities that required years of training, expensive platforms, and dedicated logistics chains can now be approximated, and in some tactical contexts matched, by actors with access to commercial technology and basic technical knowledge.

This does not mean that advanced militaries have lost their edge. Sensor fusion, electronic warfare, command and control, long-range precision strike, and the capacity to sustain operations at scale remain decisive advantages. But those advantages increasingly depend on the ability to contest the drone threat — to prevent adversaries from using cheap, commercially available unmanned systems to conduct ISR, strike logistics, and degrade the human factors that make complex operations possible.

A force that cannot defend its ground equipment, forward bases, and personnel from drone attack is a force whose conventional advantages can be systematically degraded at low cost by an adversary who does not need to match them capability for capability, only to disrupt them effectively enough to change the operational calculus.

The Counter-UAS Imperative

The response to drone democratisation is not to uninvent the technology. Commercial drone platforms will continue to proliferate, and the barrier to weaponisation will continue to fall. The response is to invest in counter-UAS capability with the same urgency and scale that the threat demands.

That means layered defence, with detection systems that can identify threats across the full range of drone types and operational profiles, electronic countermeasures that can disrupt control links, and kinetic or physical intercept options for threats that cannot be jammed. It means platforms that can operate autonomously at the speed and scale the threat requires, without demanding the kind of human operator bandwidth that saturates in a complex multi-drone engagement. And it means sovereign capability, with C-UAS systems that are not themselves dependent on foreign supply chains that an adversary could disrupt.

The battles of the next decade will be contested, in significant part, in the low airspace above 50 metres. The actors who own that space, who can deny it to adversaries and exploit it for themselves, will hold an asymmetric advantage that no amount of conventional military investment can fully compensate for. The Armenians learned this at enormous cost. The lesson is available to those willing to learn it cheaply.

Baird Technology develops sovereign autonomous counter-UAS platforms for Australian and allied defence. Contact us for technical briefings and capability discussions.