Quantitative Scenario Analysis — March 2026
Iran Drone & Missile Fleet vs Coalition Air Defense: Attrition Model
Based on open-source intelligence from CSIS, JINSA, ISW, Arms Control Wonk, and defense analysts
Force Balance Overview
Iran Shahed Fleet
80,000–100,000
All variants incl. Shahed-131/136/238, Arash, Karrar
Ballistic Missiles
~1,500
Remaining post-June 2025
Target Theaters
5+
Israel, UAE, Kuwait, Bahrain, Qatar, Saudi Arabia
Monthly Drone Production
200–500/mo
Iran domestic; Russia: 5,000/mo (Alabuga)
Monthly Missile Production
~100/mo
Ballistic missile output
Coalition Interceptors (incl. APKWS)
25,000–28,000
~20K APKWS rockets ($28K/shot) + 5–8K traditional interceptors ($0.5–2M/shot), split over multiple theaters
Monthly Interceptor Production
200–300/mo
All types combined — cannot surge quickly
Cost Per Iranian Drone
$20K–50K
Shahed-136: $35K avg
Cost Per Intercept (Avg)
$0.5M–2M
Weighted average — 14:1 to 100:1 attacker advantage
Interactive Scenario Simulator
This is a simple simulator model designed to help you understand the question of attacker versus defender inventories. There are lots of variables you can play with. One of the key ones is the low-cost APKWS interceptors, of which there are an estimated 20,000 in the region.
As with any model, it's a simplification. Try dropping the APKWS number down to zero — unrealistic, but it shows what happens to depletion — then take it back up to 20,000. You can also change how effectively they get used each day via the APKWS kills/day slider.
Attack Parameters
Defense Parameters
30-Day Attrition Model
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MAGAZINE DEPTH CRISIS — Interceptors depleted on Day 0
Total Launched
0
Total Intercepted
0
Getting Through
0
Penetration Rate
0%
Interceptor Depletion
Sufficient
Defense Cost
$0
Attack Cost
$0
Cost Exchange Ratio
1:1
Cost Per Intercept by System
Historical Attack Data
| Event | Date | Drones | BMs | CMs | Total | Int. Rate | Hits | Def. Cost | Atk. Cost |
|---|---|---|---|---|---|---|---|---|---|
| True Promise I | Apr 2024 | 170 | 120 | 30 | 320 | 99% | ~2–7 | $1.0–1.3B | $80–120M |
| True Promise II | Oct 2024 | 0 | ~200 | 0 | ~200 | ~78% | ~45 | $0.8–1.5B | $35–80M |
| Rising Lion | Jun 2025 | ~12,000 | ~6,300 | — | ~18,300 | ~86–99% | ~200–900 | $8–20B | $0.5–2B |
| Houthi Campaign | 2023–now | ~400+ | ~200+ | ~100+ | ~700+ | ~70–85% | Multiple | $2–4B+ | $50–150M |
Estimated Interceptor Stockpile — Post-June 2025
Key Insights
- Iran has an estimated 80,000–100,000 Shaheds across all variants — not the 3,000–10,000 "long-range strike" figure from conservative think tank estimates. The full fleet is the relevant number when Iran is launching at multiple theaters simultaneously.
- The current conflict (Operation Epic Fury, Feb 28 2026) has Iran hitting UAE, Kuwait, Bahrain, and Saudi bases alongside Israel — splitting coalition defenses across 5+ theaters and diluting interceptor allocation per theater.
- April 2024's 99% intercept rate was an outlier: telegraphed attack, 9-hour drone flight time, 6-nation coalition, limited 320-weapon salvo. It set unrealistic expectations.
- June 2025 consumed 25% of US THAAD stockpile in 12 days defending Israel alone — now the same interceptors must cover 5+ Gulf theaters simultaneously. Replenishment takes 3–8 years.
- At 80,000 drones and 500/month production, Iran can sustain 2,500+ drones per day for a month before exhausting its fleet. Coalition interceptors would be depleted in days, not weeks. As the Wall Street Journal reported: the US is racing to accomplish its Iran mission before munitions run out — dwindling stockpiles could limit options even within a week.
- Iron Beam laser ($2–5/shot) is the only economically sustainable solution — but only 1–2 systems are operational, all in Israel. Zero laser defense exists at Gulf bases.
- The cost exchange ratio fundamentally favors the attacker: $35K drone vs $500K–4M to intercept (14:1 to 100:1). At full-fleet scale, Iran can impose $50–200 billion in interception costs on the coalition.
- APKWS guided rockets (~$28K/shot) are the coalition's cost-effective kinetic counter — the first where defender cost ≈ attacker cost. With a 100% hit rate in testing, 40% of CENTCOM drone kills, and F-15Es carrying 42 rockets per sortie, an estimated 20,000 rockets in theater provide a meaningful buffer before expensive interceptors are consumed. (BAE Systems / CENTCOM, FALCO program)
- Multi-theater pressure is the multiplier: every Patriot battery defending Al Udeid (Qatar) is one not defending Nevatim (Israel). Iran's strategy is to force defenders to spread interceptors across 5,000+ km of front.
Forecasted in 2021: The Exponential Age
In The Exponential Age (2021), Azeem Azhar argued that exponentially improving technologies would fundamentally reshape conflict. Here is what the book predicted — and what has since come to pass.
"The steeply declining prices of weaponry catalyse conflict — drawing ever more actors into a digital or physical battlefield."
The Exponential Age, 2021
2026 reality: Iran produces Shahed drones at $20–50K each. Intercepting one costs $500K–$4M. The cost exchange ratio runs 14:1 to 100:1 in the attacker's favour — enabling Iran to impose $50–200B in defense costs on the coalition.
"The men-and-materiel approach of the twentieth century was vulnerable to low-cost exponential technologies."
The Exponential Age, 2021 — on the 2020 Nagorno-Karabakh war
2026 reality: Nagorno-Karabakh was the preview. Iran's 80,000-drone fleet is the full realisation — overwhelming interceptor stockpiles that take 3–8 years to replenish, with June 2025 consuming 25% of US THAAD reserves in 12 days.
"Autonomous systems could support warfare by undertaking thousands of complex and coordinated actions in a faster and more agile manner than humans."
The Exponential Age, 2021
2026 reality: Iran sustains 2,500+ drones per day across 5+ theaters simultaneously. Coalition defenders must split finite interceptor stocks across 5,000+ km of front — a coordination problem that favours the attacker's volume over the defender's precision.
"Military drones represent the inverse of traditional flagship military technologies — the ballistic missiles, nuclear weapons, aircraft carriers and stealth fighters that remain the privilege of a handful of rich nations. Increasingly, anyone can build a drone army."
The Exponential Age, 2021
2026 reality: Houthi rebels, Iranian proxies, and Iran itself all operate independent drone fleets — attacking shipping, Gulf bases, and Israel simultaneously. The $300 Amazon drone the PKK used in 2018 has evolved into nation-scale arsenals built on the same exponential cost curves.