The drone war is the first conflict whose balance sheet can fit on a single sheet of paper — and is, more often than not, the decisive document.
A four-hundred-dollar quadcopter destroys a four-million-dollar tank. Even drawn at scale on a single page, the gap is hard to render — a hairline against a heavy rule, and the heavy rule still understates it. For Ukraine the realised exchange ratio sits between one to ten thousand and one to fifteen thousand. For United States and Gulf interceptions of Iranian Shaheds the math runs the other way: every dollar Tehran spends on a one-way attack drone costs the defender between twenty and twenty-eight dollars to defeat.
The Stimson Center's Kelly Grieco has written the cleanest summary: "every $1 Iran spends on a Shahed costs the UAE roughly $20–$28 to intercept." The June 2025 Iran-Israel exchange consumed about a hundred and fifty THAAD interceptors and eighty SM-3s, costing the United States and partners an estimated five to ten billion dollars to defeat roughly one thousand drones and five hundred and fifty ballistic missiles. The math, sustained, is ruinous.
The blue dot is the attacker; the copper dot is the typical Russian armoured target. The arc connecting them is the exchange ratio. Even at logarithmic scale the gap is visible.
What follows is the article's cost table, redrawn as a hairline ledger. The blue rows are the systems the war turns on; the heaviest cost shocks are the bottom three rows — the interceptors that defend against the cheapest entries above.
| System | Cost · USD | Role |
|---|---|---|
| UA / RU FPV | $300 — 1,000 | Tactical strike |
| Fibre-optic FPV | $500 — 2,000 | EW-resistant strike |
| Sting interceptor | ~$2,100 | Anti-Shahed |
| Switchblade 300 | $6 — 10,000 | Loitering munition |
| Merops interceptor (US) | $10 — 15,000 | Anti-Shahed |
| UA logistics UGV | $15 — 20,000 | Frontline supply |
| Shahed-136 / Geran-2 | $20 — 50,000 | Long-range OWA |
| Lancet | ~$35,000 | Tactical hunter-killer |
| Switchblade 600 | $70 — 90,000 | Anti-armour loiter |
| Israeli Harop | $150,000+ | Loitering munition |
| Magura V5 USV | $250 — 300,000 | Naval strike |
| Bayraktar TB2 | ~$5 M | MALE strike (legacy) |
| MQ-9 Reaper | ~$30 M | MALE strike |
| Patriot PAC-3 MSE | ~$4 M | SAM · defensive |
| THAAD interceptor | $12 — 15 M | High-altitude SAM |
Blue rows mark the systems that have, in this volume, materially shifted the war. The lower the row, the worse the news for whoever is doing the defending.
Three bars. Two are roughly equal. The third is the one the West will spend the rest of the decade trying to grow.
Ukraine and Russia produce roughly four million drones a year, each. The United States produced six hundred and twenty Patriot PAC-3 interceptors in 2025 — its largest defensive missile production line. The right bar is drawn at the same scale as the other two.
The single most underappreciated story for a technically literate reader. The Russian and Ukrainian drone industries are both critically dependent on commodity Chinese components — motors, batteries, cameras, radio modules, fibre-optic cable spools. Russian drones additionally contain large numbers of Western semiconductors. The Iranian Shahed-136, by one analysis, is ninety per cent Western chips by component count.
If Beijing chose to embargo drone components to one or both sides, the answer to the question that follows is not reassuring for Western defence planners.
The blue lines are the commodity channel both sides depend on. The grey hairlines are Western chips finding their way into Russian airframes despite sanctions. If Beijing closed either route, both Ukraine and Russia would feel it within a quarter.