The FOM You Are Allowed to Buy: Export Floors and the Diplomacy of Darkness

The regime is layered. Intensifier tubes and night-vision systems sit in Category XII of the US Munitions List; exports require State Department licenses; retransfers between foreign parties require American approval; and end-use monitoring, run through the Golden Sentry program, sends inspectors to verify that controlled articles remain where their licenses put them. The thermal world runs on the Wassenaar dual-use lists, where the well-known nine-hertz frame-rate ceiling separates freely exportable cores from licensed ones — the reason commercial thermal drones ship with slowed video modes while thirty- and sixty-hertz versions move under license. The dividing lines look arbitrary from the outside; inside the system each one encodes a specific judgment about which capabilities an adversary should have to steal rather than buy.

Release policy grades the ladder in practice. Top-bin unfilmed high-FOM tubes are effectively reserved for US forces and the closest allies; mid-tier Gen 3 moves widely through Foreign Military Sales; below that, Gen 2-plus and commercial-grade devices flow with fewer constraints. The tiering is visible indirectly rather than in any published schedule — in what allies actually field, in the performance brackets that surface in export licenses, and in what prosecutors describe when transfers go wrong. Ukraine's wartime pipeline demonstrated that the ceiling is policy rather than physics: aid packages moved top-tier equipment that peacetime release practice would never have approved, on timelines no FMS case has ever matched.

The enforcement edge shows where the floors bind. Tube and device smuggling prosecutions — equipment bound for China, Russia, Iran, and elsewhere — recur in American court records with metronomic regularity, and the grey market in surplus and diverted devices is persistent enough that serial-number tracing and end-use checks constitute a standing industry. Controls shape lawful supply so completely that the unlawful market functions as a reliable map of exactly which buyers the floors exclude and how badly they want in. The devices most often recovered — PVS-14-class monoculars and their components — are unremarkable hardware by current standards; what is controlled is the performance they represent, which is why the cases are prosecuted as strategic losses rather than customs violations, and the sentencing reflects it.

Every floor creates a customer for whoever sits outside the regime. Photonis sells ITAR-free tubes as strategic autonomy, and the European sixteen-millimeter ecosystem thrives among buyers Washington would license slowly or not at all. Chinese tubes reach non-aligned markets with no release conversation at any price. The control regime therefore allocates market share as surely as it allocates capability — a cost that American industry quietly pays for an advantage that American strategy values more, and a subsidy to competitors that no one in the policy process is formally responsible for counting.