An emerging threat that will shape the next decade of national security, defense, and homeland security is the proliferation of low-cost, autonomous, technological systems and the widening gap between the cost of these threats and the cost of defending against them. Commercial drones, AI-enabled surveillance tools, and cheap unmanned platforms are creating strategic gaps that need to be accounted for. 

The War in Ukraine has demonstrated this imbalance with stark clarity. Inexpensive commercial drones, costing hundreds of dollars, are being used to target systems worth millions. This cost asymmetry is not limited to overseas theaters. The same technology can be accessible to domestic bad actors, criminal organizations, and hostile state proxies operating within U.S. borders in the next decade. Critical infrastructure, power grids, water systems, transportation networks, and communication systems face growing exposure to low-cost, high-impact autonomous threats that existing detection and response frameworks were not designed to address. The persistent cybersecurity threats to critical infrastructure and the potential for geopolitical instability only heighten the need for agencies to hyper-focus on building a foundation that strengthens state capacity and sustainability. 

For national security, defense, and homeland security agencies, this creates two parallel challenges. First, threat detection with current situational awareness systems optimized for traditional threat categories is not well calibrated to detect swarms of small autonomous systems operating below radar thresholds. Second, cost efficiency, the instinct to counter cheap threats with expensive systems, creates a budget imbalance that is strategically unsustainable. It creates a strategic imbalance in which costly high-end systems like THAAD are being destroyed by cheap Shahed missiles. If this dynamic were replicated against allied or domestic infrastructure, even a single rogue actor acquiring these technologies could threaten critical systems. 

Agencies should adapt in three ways. First, invest in developing and acquiring low-cost counter-drone and detection capabilities rather than defaulting to high-end solutions. Study models emerging from Ukraine, Israel, and the UAE, where cost-efficient defensive and detection systems are being developed rapidly, and the doctrinal solutions, outside of purely technological approaches, that nations like Ukraine have employed when dealing with continuous drone and autonomous weapons threats. Second, update emergency management planning to explicitly incorporate threats to critical infrastructure from autonomous systems,

including exercises and protocols that address this scenario. Third, build information-sharing frameworks between federal, state, and local agencies, and with private infrastructure operators currently integrated into this dynamic, so that early warning of autonomous threats can be rapidly disseminated and acted upon. This does not need to just consider autonomous weapons, but the potential for both natural and manmade endangerment of critical infrastructure, which could hinder emergency response readiness. 

The lesson from the last four years of conflict abroad and recent leaps in technological competition overseas is that technological advantage is no longer determined solely by sophistication. Adaptability, cost efficiency, and deployment speed matter as much as raw capability. The cost gap between the United States and competitors like China in electric-vehicle and solar-panel production reflects the same dynamic playing out in the defense and security sectors. China is learning from past mistakes in drone warfare doctrine, and the world is adapting to the precedents set in Ukraine and Iran. Cheaper solutions and models are being developed, and having the most expensive and sophisticated system won’t cut it. The question of continued American power, let alone the capacity to defend its interests and allies abroad, depends upon its ability to learn from its mistakes and the successes of others. 

Private-sector and commercial competitiveness are as important as robust, affordable critical infrastructure defense systems for the long-term sustainability and prosperity of American homeland security. American exceptionalism cannot substitute for American adaptability, and homeland security agencies that fail to internalize this risk will be outpaced by threats they could have anticipated but failed to act on. Cost-efficiency and modernization are key to how our agencies need to adapt to this emerging threat, especially as the high costs of systems designed for overseas operations cut into domestic security budgets and hinder disaster response readiness. There is no doubt that the United States has the means to overcome this trial and implement the necessary reforms to its defense spending and procurement processes, but does it have the will?

References

Watling, Jack, and Nick Reynolds. Meatgrinder: Russian Tactics in the Second Year of Its Invasion of Ukraine. Royal United Services Institute, 2023. https://rusi.org/explore-our-research/publications/special-resources/meatgrinder-russian-t actics-second-year-its-invasion-ukraine 

Kremidas-Courtney, Chris. "The New Economics of Warfare." European Policy Centre, March 9, 2026. https://www.epc.eu/publication/the-new-economics-of-warfare/ Boudreaux, Blake, and Jon Lindsay. "Countering Small Drones." War on the Rocks, 2023.

Cybersecurity and Infrastructure Security Agency. 2023 Year in Review. U.S. Department of Homeland Security, 2024. 

Ellerman, Jon, and Sophia Giarmarco. "Iran War Cost Estimate Update: $1.13 Billion on Day 6, $1.65 Billion on Day 12." Center for Strategic and International Studies, 2024. https://www.csis.org/analysis/iran-war-cost-estimate-update-113-billion-day-6-165-billion-day-12 

Institute for the Study of War and American Enterprise Institute. "Lessons-Learned with Chinese Characteristics: Understanding the Limits of PLA Efforts to Adapt to Contemporary Warfare." April 6, 2026. https://www.aei.org/articles/lessons-learned-with-chinese-characteristics-understanding-t he-limits-of-pla-efforts-to-adapt-to-contemporary-warfare/