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08 Sept 2026

Every ro-ro is a sealift ship

Strategic sealift is not a navy. It is a car carrier under charter, a ferry with a strengthened deck, an LNG tanker whose route is a matter of state. Reading the merchant fleet as a military asset is the habit this journal exists to teach.

By the Shipping and Defence Industry desks

Armies move by sea. Not the sharp end — the sharp end flies — but the tanks, the trucks, the fuel, the ammunition, the containerised everything. In a serious deployment more than nine-tenths of the tonnage goes by ship, and almost none of those ships belong to a navy.

Three ways a civilian hull is a military one

Design. A pure car and truck carrier (PCTC) is a floating multi-storey car park with a stern ramp. Its decks are rated for road vehicles; some are strengthened for heavier loads. Swap the cars for armoured vehicles and the ship's job barely changes. The Point-class ro-ros the UK built specifically for strategic sealift are, to a first approximation, commercial ro-ros with a military charter.

Charter. The largest sealift capability in the world is an arrangement, not a fleet: commercial operators who agree, for a retainer, to make ships available on notice. The ships trade normally until called.

Route. An LNG carrier from Ras Laffan to Milford Haven is a commercial voyage. It is also a national security event for the country waiting at the far end. The spot rate for a 174,000 cubic-metre carrier (LNGF.174) is, among other things, a measure of how much it costs to keep that dependency running.

Nobody on this desk thinks about the military. But every fixture we do would be the first thing a planner looked at.
— A broker, on the record but unnamed

Why this matters for a terminal

A Bloomberg screen shows you the freight rate. A defence journal shows you the exercise. This one tries to put them on the same page: the same dossier for a ship class carries a civil reading and a military reading, side by side, and the layout lets you keep a chokepoint plot next to the tanker board. The differentiator is not more data. It is the second reading.

The dual-use test
For any asset, ask: what does it carry, who owns it, where does it go, and who would want it in a crisis? If the answers differ between a Tuesday and a mobilisation, it belongs in a dossier here.