Counter-Unmanned Aircraft Systems (C-UAS): A Research Guide

Nimble Books · annotated research bibliography · current to mid-2026 · ISBN TBD

The drone threat has outpaced its literature. The authoritative sources on countering unmanned aircraft are scattered across think-tank PDFs, government reports, vendor papers, and journals — with no current curated guide. This bibliography is that guide: 245 sources across 17 sections (2009–2026), each annotated and organized.

Inside the guide (samples)

Foundations & Overviews

• Congressional Research Service, *Department of Defense Counter-Unmanned Aircraft Systems: Background and Issues for Congress* (CRS Report R48477, 2025) — The single best congressional primer on the U.S. military C-UAS enterprise — covering DoD policy, organization, weapon systems, authorities, budget figures, and legislative considerations. Essential orientation for understanding how the U.S. government frames the counter-drone problem set.
• Congressional Research Service, *Law Enforcement and the Evolving Counter-Unmanned Aircraft Systems (C-UAS) Landscape* (CRS Insight IN12661, 2025) — Orients the reader to the domestic, civil-authority side of C-UAS — the legal authorities, agency roles, and statutory limits governing who may detect and defeat drones inside the United States. Crucial for grounding the homeland-defense dimension distinct from the battlefield.
• Stacie Pettyjohn and Molly Campbell, *Countering the Swarm: Protecting the Joint Force in the Drone Age* (Center for a New American Security, 2025) — A landmark CNAS report arguing that cheap drones have 'democratized mass precision fires' and that the U.S. faces an unfavorable cost-exchange problem (e.g., $2,000 quadcopters vs. million-dollar interceptors). Calls for cheaper interceptors and extending C-UAS capability to every unit — the agenda-setting policy survey of the post-October-2023 threat environment.

Detection, Tracking & Identification

• Sliusar, Yevhen, et al. "Intelligent Multimodal Multi-Sensor Fusion-Based UAV Identification, Localization, and Countermeasures for Safeguarding the Low-Altitude Economy." arXiv:2510.22947, 2025. — A recent treatment of multimodal sensor fusion (radar, RF, EO/IR, acoustic) for identifying and localizing UAVs in dense low-altitude airspace, linking detection to countermeasure cueing. Captures the current fusion-first direction of the field for civilian airspace integration.
• Wang, Jian, et al. "Advance and Refinement: The Evolution of UAV Detection and Classification Technologies." arXiv:2409.05985 (preprint, later International Journal of Critical Infrastructure Protection), 2024. — A comprehensive 2020-2024 review of radar, RF, optical, and acoustic detection methodologies and their integration via sensor fusion, with emphasis on AI/ML impact on accuracy and range. Serves as an up-to-date single-source map of the entire detection-and-classification landscape.
• Bhattacherjee, Udita, et al. "A Survey on Detection, Classification, and Tracking of UAVs Using Radar and Communications Systems." arXiv:2402.05909, 2024. — Focuses specifically on radar- and communications/RF-based detection, classification, and tracking, including how 5G/cellular infrastructure can be repurposed for sensing. Valuable for understanding the radar-plus-RF backbone of most fielded C-UAS detection chains.

Defeat & Mitigation

• Pettyjohn, Stacie, and Molly Campbell. "Countering the Swarm: Building an Affordable and Effective Counter-Drone Force." Washington, DC: Center for a New American Security (CNAS), September 2025. — Major CNAS study arguing the U.S. lacks purpose-built C-UAS systems, affordable interceptor reserves, and modern SHORAD. Tracks 2015-2025 C-UAS spending ($4.8B to $7.4B) and quantifies the unsustainable defender cost-exchange ratio driving demand for cheap kinetic and directed-energy effectors.
• Jensen, Benjamin, et al. "Drone Saturation: Russia's Shahed Campaign and the Future of Air Defense." Washington, DC: Center for Strategic and International Studies (CSIS), May 2025. — CSIS analysis of mass one-way-attack drone campaigns and the layered-defense response, emphasizing the economic mismatch of intercepting $20K-$50K Shahed-class drones with multi-million-dollar interceptors. Argues for affordable kinetic, EW, and directed-energy layers.
• Epirus, Inc. "Leonidas Demonstrates Successful Use of High-Power Microwave to Defeat Fiber-Optic Controlled UAS." Press release/test report, 2025. — Vendor test report documenting the Leonidas solid-state HPM system defeating fiber-optic-controlled FPV drones immune to RF jamming, illustrating HPM's electronics-disabling defeat path against swarms. Context for the Army IFPC-HPM program and the Marine Corps ExDECS variant.

Doctrine, Policy, Organization & Law

• U.S. Army. "ATP 3-01.81: Counter-Unmanned Aircraft System (C-UAS) Operations." Army Techniques Publication. Washington, DC: Headquarters, Department of the Army, May 2025 (superseding the August 2023 edition). — The Army's tactical doctrine for C-UAS in multidomain operations, covering threat overview, planning for brigade-and-below, and active/passive defensive and offensive measures, premised on C-UAS as a shared responsibility of every Soldier and unit. The core U.S. ground-force tactical reference.
• U.S. Department of Defense. "Establishment of Joint Interagency Task Force 401 (JIATF 401)." Secretary of Defense Memorandum. Washington, DC: OSD, August 28, 2025. — Directs the Army to stand up JIATF 401, the interagency task force succeeding the Joint Counter-Small UAS Office to accelerate counter-drone doctrine, requirements, and materiel across the joint force and partner agencies. Documents the major 2025 reorganization of DoD C-UAS leadership.
• U.S. Government Accountability Office. "Aviation Safety: Federal Efforts to Address Unauthorized Drone Flights Near Airports." GAO-24-107195. Washington, DC: GAO, 2024. — Examines federal and local roles in airport drone incidents, the statutory authorities of DHS/DOJ/DoD/DOE, and FAA airspace-integration tensions, recommending that Congress amend statutory authorities and that FAA assess C-UAS effects on drone integration. Key oversight document linking airspace safety to counter-drone law.

Operational Lessons & Case Studies

• CSIS Missile Defense Project, "$3.7 Billion: Estimated Cost of Epic Fury's First 100 Hours," Center for Strategic and International Studies, 2026. — Costs out the opening phase of the 2026 U.S.-Iran campaign and documents how rapid expenditure of premium interceptors and precision munitions forced a shift to cheaper weapons, exposing solid-rocket-motor and interceptor production-base constraints under sustained air/missile defense demand.
• James Paterson and Lydia Khalil, "The Ungoverned Sky: Drones and the Domestic Extremist Threat," *Lowy Institute Analysis* (2026) — Assesses how cheap, capable drones create a domestic security gap over airports, bases, and critical infrastructure, and why detection-and-attribution failures (as at Langley and Gatwick) leave defenders with few legal and technical counter-UAS options at home.
• CSIS Missile Defense Project, "Drone Saturation: Russia's Shahed Campaign," Center for Strategic and International Studies, 2025. — Documents Russia's escalation of Shahed launches from roughly 200 to over 1,000 per week and how saturation tactics clutter radar and force Ukraine to ration expensive Patriot-class interceptors, validating cheap interceptor drones and electronic warfare as the sustainable counter.

Threat & Adversary Systems

• Office of the Director of National Intelligence, "Annual Threat Assessment of the U.S. Intelligence Community," March 2025. — The IC's unclassified threat estimate documents adversary UAV production and employment—Russian Shahed campaigns, Iranian proliferation, and the spread of attack drones to militias and proxies—establishing the state-and-proxy threat picture that drives homeland and force-protection C-UAS priorities.
• National Counterterrorism Center, FBI, and DHS, "Use of UAS by FTO-Designated Mexico-Based Cartels a Danger to U.S. Security Officials and Public Safety," Joint Counterterrorism Assessment Team First Responder's Toolbox, 2025. — Documents how Mexico-based cartels designated as foreign terrorist organizations are weaponizing commercial drones and using them for surveillance, smuggling, and improvised munition drops, mapping a non-state UAS threat directly on the U.S. southwest border.
• International Institute for Strategic Studies, "Russia Doubles Down on the Shahed," Military Balance online analysis, April 2025. — Tracks Russia's escalating Shahed one-way-attack-UAV campaign—expanding domestic production, refining tactics, and launching 2,300 in November 2024 and 2,696 in January 2025—illustrating how mass cheap OWA-UAVs strain layered air defenses.

Civil, Homeland & Critical-Infrastructure Protection (incl. Industry & Programs)

• House Committee on Homeland Security, "Industry Perspectives on How Drone Warfare Abroad Is Informing Homeland Security," Hearing Testimony, July 8, 2025. — Industry testimony documenting the surge in domestic drone incursions—prison contraband drops, stadium overflights, energy-grid surveillance—and pressing Congress to modernize counter-drone authorities for civil and critical-infrastructure operators.
• Epirus, "Epirus Receives $43.5 Million Contract from U.S. Army for IFPC-HPM Generation II Systems," Epirus press release, July 2025. — Follows the four Leonidas high-power-microwave prototypes delivered under the IFPC-HPM program in 2024 with a Gen II award promising more than double the effective range, illustrating the maturing directed-energy counter-swarm capability.
• Robert Mitchell and Lourdes Linares (Holland & Knight), "Update on U.S. Counter-UAS Authorities and Efforts to Address Threats from Drone Operations," Holland & Knight Insights, July 2024. — Legal analysis of the fragmented U.S. C-UAS authority landscape—DHS, DOJ, DoD, and Energy hold the only express statutory mitigation powers—and the bipartisan legislative push to extend protections to airports, stadiums, and critical infrastructure.

Non-Traditional Sources: OSINT, X/Twitter & Practitioner Feeds

• Drone Warfare / DWIM — Drone Warfare Intelligence Monitor (drone-warfare.com) — Open-source unmanned-systems analysis platform publishing weekly/monthly/quarterly counter-UAS reports and a comprehensive 'Counter-UAS 101' reference series (detection, EW/non-kinetic defeat) drawing on 50+ weighted defense sources (CSIS, RUSI prioritized). Operator not publicly named — flagged; value is in the structured C-UAS reference content.
• Samuel Bendett (@sambendett) — adviser, CNA Russia Studies Program; Adjunct Senior Fellow, CNAS; Non-resident Senior Associate, CSIS — Among the leading Western experts on Russian (and Ukrainian) military robotics, UAS, EW, and AI; native-Russian-fluent, posts near-daily granular analysis of drone systems, countermeasures, FPV economics, and production pipelines. Widely cited by Breaking Defense and major outlets.
• Rob Lee (@RALee85) — Senior Fellow, FPRI Eurasia Program; researcher, War Studies Dept., King's College London; former USMC infantry officer — One of the most-cited open-source military analysts of the Russia-Ukraine war, with frontline-sourced reporting on FPV and fiber-optic drone proportions, drone-line tactics, and UAS scaling. Frequent expert commentator (ChinaTalk, Kyiv Independent).

Video & Podcasts: YouTube, Talks & Audio

• Software-Defined Warfare Has Arrived: David Petraeus on What NATO Can Learn From Ukraine — United24 Media interview — Petraeus interview detailing Ukraine's Unmanned Systems Force as a doctrinal model, drone production scale (3M/yr from a single Ukrainian maker vs. ~300K U.S.), and the terrorism risk from drone-swarm proliferation. Concrete, quotable lessons for anyone thinking about counter-UAS at the NATO/strategy level.
• Adapting Under Fire: Ukraine's Race to Reinvent Modern Defense — CSIS Wadhwani AI Center (Kateryna Bondar with Ukrainian air-defense operators) — CSIS event putting active-duty Ukrainian army/air-force air-defense operators on the record about how the drone/missile threat evolved since 2022 and the growing role of software, automation, and AI in counter-UAS. Rare frontline-operator testimony channeled through a serious think-tank forum.
• Countering Drones and the Pace of Modern War — War on the Rocks podcast (AeroVironment, Epirus, Hidden Level executives) — Three counter-drone company leaders on how the U.S. military is adapting and what's broken in how America procures C-UAS systems. Valuable industry-practitioner perspective on the detect/defeat market and the acquisition friction that shapes what actually gets fielded.

Expert Voices: Named Commentators & Their Work

• David H. Petraeus, interviews from Kyiv on Ukraine's drone and counter-drone ecosystem (CBS News, "Ex-CIA director David Petraeus says U.S. needs to learn 'whole new concept of warfare' from Ukraine"; United24 Media; Charlie Rose). — After repeated frontline visits Petraeus reports Ukraine downs roughly 95% of significant drone attacks and warns the U.S. lacks a real defense against jam-proof, algorithmically piloted drones and swarms. He stresses that Ukraine's edge is an integrated command-and-control ecosystem and a dedicated Unmanned Systems Force, not individual gadgets — a direct argument for systemic, layered C-UAS.
• Samuel Bendett, adviser, CNA Russia Studies Program, and adjunct senior fellow, Center for a New American Security. — The leading open-source analyst of Russian (and increasingly Ukrainian) military drones, autonomy, and counter-drone adaptation; publishes in Foreign Policy, Breaking Defense, and C4ISRNET and posts near-daily battlefield UAS analysis on X as @sambendett. Essential for tracking how both sides iterate strike drones and counter-UAS electronic warfare in near-real time.
• T.X. Hammes, "Small, smart, many and cheaper: Competitive adaptation in modern warfare," Atlantic Council Q&A; and earlier work at National Defense University on cheap, autonomous mass. — Retired Marine colonel and distinguished research fellow at NDU's Institute for National Strategic Studies; his long-running 'small, smart, and cheap' thesis argued that swarms of inexpensive drones would overwhelm 'few and exquisite' platforms and push warfare toward the defensive — a foundational frame for why mass counter-UAS is now urgent.

Industry & Company Sources

• Anduril Industries — Counter-UAS / Anvil & Lattice Product Pages (2024) — Vendor product documentation for the Anvil kinetic interceptor and Lattice C2 mesh integrating sensors and effectors into a single detect-track-identify-defeat stack. Primary/promotional material that documents claimed capability, not an independent assessment; figures and engagement claims are unverified marketing.
• Epirus, Inc. — Leonidas High-Power Microwave (HPM) Directed-Energy C-UAS Capability Briefs (2024) — Vendor capability material on the GaN solid-state Leonidas HPM system for counter-swarm and counter-electronics, including a 49-drone live-fire demonstration claim. Promotional source: live-fire results are company-reported under controlled conditions, not third-party validated.
• DroneShield Limited (ASX:DRO) — DroneGun Mk4 / DroneSentry / RFAI Counter-Drone Capability Materials (2024) — Vendor material on RF-detection (RFAI) and RF-disruption product lines (DroneGun Mk4, DroneSentry, RfPatrol). Primary/promotional; as a listed company some claims appear in investor-facing releases, which adds disclosure discipline but does not make capability claims independently verified.

U.S. Government Procurement, Solicitations & Awards

• U.S. Air Force — BAE Systems APKWS II Air-to-Air Counter-Drone Interceptor IDIQ, ~$145M (2026) — IDIQ to develop and field a dual-mode air-to-air counter-drone interceptor on the laser-guided APKWS II rocket, giving fighters a low-cost, high-magazine-depth option to defeat UAS without expending scarce air-to-air missiles — a direct cost-per-kill response to the drone-swarm threat.
• Defense Innovation Unit, NORTHCOM & JCO — Joint Low-Collateral Defeat (LCD) Capabilities Solicitation for Replicator 2 (2025) — Commercial Solutions Opening (open through 19 May 2025) seeking low-collateral kinetic, directed-energy/EW, and capture/entanglement defeat options for Group 1–2 (and some Group 3) drones that scale across the joint force and integrate into C-sUAS programs of record — the procurement vehicle for Replicator 2's defeat layer.
• Defense Innovation Unit, JIATF-401, USNORTHCOM & US Army — C-UAS Low-Cost Sensing (LCS) Challenge, MatrixSpace Winner (2025) — Prize challenge (up to $1M pool) launched May 2025; on 12 Dec 2025 MatrixSpace won the $500K top award with $100K each to Guardian RF, Hidden Level, and Teledyne FLIR Defense, targeting distributed low-cost sensing at a claimed 50–80% cost-of-ownership savings vs. legacy radar/EO/RF.

Türkiye — Turkish-Language Sources

• ASELSAN, "İHASAVAR" RF jammer drone gun — vendor brief / ASDA 2025 unveiling (2025) — Aselsan promotional material for the İHASAVAR (literally 'UAV-Killer') man-portable backpack RF jammer that disrupts 2.4/5.8 GHz control, GNSS and telemetry links to force commercial drones down; combat-fielded (Azerbaijan, recovered samples in Nigeria). English-language vendor brief mirroring the Turkish product line. Credibility: VENDOR-PROMOTIONAL — claimed jamming ranges and success rates are manufacturer figures.
• C4Defence / SavunmaSanayiST, "Türkiye'nin İHA Önleme ve Çelik Kubbe Mimarisi" [Türkiye's Counter-UAV and Steel Dome Architecture] — defense-press analysis (2025) — Turkish defense-press analysis of how counter-drone gun/jammer/laser layers integrate into the 'Çelik Kubbe' (Steel Dome) multi-layer air-defense program. Turkish-language specialist outlets. Credibility: TRADE/DEFENSE PRESS — domestically enthusiastic but provides program-integration context not found in single-product vendor briefs; semi-independent.
• ASELSAN, "İHTAR Anti-Drone Sistemi" [İHTAR Anti-Drone System] — aselsan.com.tr product page (2024) — Official Aselsan product documentation for the İHTAR mini/micro-UAV air defense system, describing the radar + electro-optical sensor detection-tracking-classification chain plus integrated RF countermeasure and hard-kill cooperation with ŞAHİN, GÖKER and the laser weapon system. Turkish-language source with parallel English. Credibility: VENDOR/STATE-PROMOTIONAL — Aselsan is a majority state-owned defense prime; claimed capability, not independently verified.

Israel — Hebrew & English Sources

• Rafael Advanced Defense Systems, "Iron Beam High-Power Laser Air Defense System" — vendor brief (2025) — Rafael material on the Iron Beam directed-energy interceptor for drones/rockets at up to ~10 km at near-zero per-shot cost; first operational system delivered to the Israeli Air Force in December 2025. English-language vendor brief (Hebrew-origin). Credibility: VENDOR-PROMOTIONAL — cost-per-shot and range claims are manufacturer figures; independent reporting notes real weather/power limits (see iHLS/Jerusalem Post entries).
• D-Fend Solutions, "EnforceAir2 / EnforceAir PLUS RF-Cyber Takeover C-UAS" — vendor brief (2025) — D-Fend documentation for EnforceAir, a non-jamming, non-kinetic RF-cyber takeover C-UAS that detects, fingerprints and safely lands rogue drones (360° coverage, ~4.5 km detection); EnforceAir PLUS adds radar and optional jamming. English-language vendor brief (Hebrew-origin). Credibility: VENDOR-PROMOTIONAL — takeover ranges and collateral-free claims are manufacturer figures.
• INSS (Institute for National Security Studies), "The Israel–Iran War: Air Defense Performance" — INSS analysis (2025) — INSS analytical assessment of Israeli air-defense performance against Iranian drone/missile barrages (~600 ballistic missiles + 1,500+ drones across the region; ~95% interception rate cited), with explicit cost-exchange and saturation analysis. English-language (Hebrew-origin institute). Credibility: INDEPENDENT ANALYSIS — INSS is a non-partisan Tel Aviv research center; uses operational data, not vendor marketing.

Iran & Hezbollah — Persian & Arabic Sources

• U.S.S. Abraham Lincoln Shoots Down Iranian Drone — Foundation for Defense of Democracies (FDD) (2026) — Independent FDD analysis of a Feb 2026 incident in which a U.S. carrier strike group downed an Iranian Shahed surveillance drone; situates the IRGC drone threat within a cost-imposition strategy (Montgomery) against U.S. forces and civilian populations. CREDIBILITY: independent Western think-tank with a declared hawkish-on-Iran editorial line; treat policy framing as advocacy-adjacent, but factual reporting and capability assessment are sound and primary-sourced.
• Iran Update — Critical Threats Project, American Enterprise Institute / ISW (2026) — Independent daily open-source intelligence-style tracking of Iran's 2026 retaliatory air campaign — documents confirmed employment of Shahed-136, Shahed-107, and Shahed-238 variants against U.S. bases, Gulf states, and diplomatic facilities, with named/dated strike events. CREDIBILITY: independent CTP/ISW analysts; rigorous sourcing and explicit confidence language; lead reference for the adversary-drone order of battle.
• Unpacking Iran's Drone Campaign in the Gulf: Early Lessons for Future Drone Warfare — Center for Strategic and International Studies (CSIS) (2026) — Independent analysis of how Iran used mass Shahed launches less to inflict direct damage than to attrit and saturate adversary air defenses, forcing costly interceptors against low-cost drones — the core counter-UAS cost-exchange problem. CREDIBILITY: independent, non-partisan think tank; strong on the operational/defensive-economics lesson set.

Russia & Ukraine — Russian & Ukrainian Sources

• Institute for the Study of War, Russian Offensive Campaign Assessment (ROCA) — coverage of the Rubicon Center for Advanced Unmanned Technologies and Russian counter-drone/EW units — ISW (2024–2026) — ISW's daily campaign assessments track the institutional Russian counter-UAS build-out: the Rubicon Center (formed Aug 2024 on Belousov's order), dedicated FPV-hunting / recon-drone-hunting / EW-and-radio-reconnaissance sub-units, and the stand-up of separate drone regiments (2025). INDEPENDENT analysis synthesizing Russian MoD claims and milblogger reporting with skepticism flags. Credible for organizational/order-of-battle context on Russian counter-drone forces.
• Ukrainian MoD / Brave1 Defense Tech Cluster, Project 'Atlas' anti-drone wall and EW programs — brave1.gov.ua / Ministry of Digital Transformation (2024–2025) — Official Ukrainian state-backed defense-tech cluster (founded 2023 by MoD + Ministry of Digital Transformation + General Staff). Project Atlas couples drone detection with digital EW (e.g., LTEJ MIRAGE model-based jamming, neutralization out to ~8 km) as a layered 'anti-drone wall'. UKRAINIAN STATE-PRIMARY — promotional/aspirational bias for Ukrainian programs and capability claims; treat performance numbers as official claims, not independent test results. Authoritative for what Ukraine is fielding and prioritizing.
• Come Back Alive Foundation (Повернись живим), counter-drone & EW fundraising — «REBnemo tak REBnemo» and 'Dronefall' projects (anti-recon-drone, EW/RER mobility) — savelife.in.ua (2024–2026) — Major Ukrainian defense charity funding counter-UAS and EW/electronic-reconnaissance (РЕР) capability — mobile EW/RER units to detect, jam, and kill Russian recon drones (Supercam, ZALA, Orlan-10); raised ₴309M (~$8.3M) for counter-recon-drone ops; 'Dronefall' claims 1,000+ Russian drones downed. UKRAINIAN-ORIGIN, pro-Ukraine fundraising organization — claims serve donor messaging, so down-count figures are self-reported, not independently audited. Valuable for grassroots/volunteer counter-drone economics and what gear the front demands.

China & Other Nations — Multilingual Sources

• Poland picks Kongsberg-PGZ consortium to build anti-drone 'wall' (SAN C-UAS) — Defense News (2026) — Independent reporting on Poland's ~PLN 15B SAN counter-UAS program (Kongsberg + state-owned PGZ; APS-supplied C2 fusing radar/RF/EO; 18 modules, ~700 vehicles/sensors/effectors) responding to Russian drone incursions over NATO territory. English. Credibility: INDEPENDENT defense journalism.
• KONGSBERG wins NOK 16 billion contract to deliver Counter-UAS solutions in Poland — Kongsberg Defence & Aerospace (2026) — Prime-contractor announcement of the Kongsberg/PGZ award anchoring Poland's eastern-border 'drone wall.' English. Credibility: VENDOR-PROMOTIONAL (contractor press release) — pairs with the independent Defense News item above.
• China's Conceptual Approaches to Counter-UAS and Lessons Drawn from Recent Conflicts — China Aerospace Studies Institute (CASI), Air University (2025) — CASI (U.S. Air University's PLA-focused research institute) analysis of how PLA scholars frame counter-UAS, drawing on Russia-Ukraine and Middle East lessons; covers swarm-defense doctrine, multi-sensor fusion, and AI-driven C2. English. Credibility: INDEPENDENT Western government-affiliated analysis (translates/interprets PLA-internal writing) — lead source for the China section.

Ask an AI about counter-UAS

• What should I read to understand counter-drone detection (radar vs RF vs EO/IR)?
• Summarize the cost-exchange problem in countering cheap drones with expensive interceptors.
• What are the key sources on directed-energy weapons for counter-UAS?
• List authoritative reports on the Joint Counter-sUAS Office (JCO) and US C-UAS policy.
• What does the Ukraine war teach about counter-UAS at the tactical edge?