The Threshold They Never Set

by Patrick Jaritz / VICTOR

Two adversaries are probing the same weakness in two theatres. Russia flies drones into European airspace from vessels sitting in international waters, and Iran attacks tankers in the Strait of Hormuz to force them onto a route it does not lawfully control. Each keeps the pressure just below the level that would compel a collective military answer, and each acts through an instrument the defender has no clean legal authority to strike. The weakness they share is a threshold their targets never agreed to set.

On July 2, the IISS published its assessment of an eighteen-month Russian drone campaign over Europe. Between August 2024 and February 2026, uncrewed aircraft crossed the airspace of a dozen NATO states and Ireland. They closed commercial airports, disrupted military movements and flew over nuclear-sharing bases and a French submarine port. The launch platforms were, in all likelihood, vessels from Russia's shadow fleet, sitting in international waters where no European government could touch them. Not one of those governments has publicly named Russia as the author.

The same afternoon, a different command in a different theatre said the quiet part plainly. Iran's Khatam ol Anbia headquarters warned that every tanker in the Strait of Hormuz must follow the Iranian traffic separation scheme or face a "decisive and swift" response. Iran has launched roughly forty-nine attacks on shipping since the war to make the point stick. Vessels that use any other route get hit.

Read together, the two campaigns describe one method.

Both operate below the line that would force a collective response, and both know where that line sits because they keep testing it. A drone that closes an airport for six hours imposes real cost and provokes no Article 5 conversation. A tanker attacked for taking the wrong lane is a commercial insurance problem, not a casus belli. The pressure is tuned to stay expensive and survivable at once.

The sharper similarity is the instrument. Europe can, in principle, shoot down a drone once it is overhead. It holds no mandate over the ship that launched it. Even a fully built European counter-drone system, the one Brussels wants running by the end of this year, stops at the coastline of the problem. Iran runs the same logic in reverse. The coerced tanker is the instrument, and every ship that submits to the Iranian lane under threat adds another entry to a record of de facto control that no diplomatic note can erase as fast as it accumulates.

This is where the comfortable reading fails. The instinct is to treat both as detection failures, fixable with better radar, faster attribution, tighter law. The harder truth runs the other way. The threshold that both adversaries exploit is political, and the defenders are the ones who left it undefined. Europe has not decided what a Russian drone over a nuclear base is worth in response. The Gulf states privately oppose Iran's route claim and have said nothing in public. CENTCOM convened a meeting in Bahrain. A meeting is not an escort.

Ambiguity was supposed to be the West's advantage, a way to keep options open and avoid backing into escalation. Russia and Iran have turned it into a target. When the response is undefined, the patient move is to live at the edge of it and widen the edge one incident at a time.

The fix is a political decision, made in advance and made credible, about what crosses the line. Hardware cannot make that decision for them. Until Europe and the Gulf make it, the drones and the tankers will keep answering the question on their behalf.