Military
From the Lord’s own garrison to Trafalgar, from the Fencibles to the internment camps — the military story of the Isle of Man.
An Island That Defended Itself
Before 1765, the Isle of Man had its own military establishment. The Lord of Mann maintained a garrison of Manx soldiers, commanded by Manx officers, defending their own island. It was small — the whole establishment ran on a budget that would barely cover a single British regiment — but it was theirs.
The Revestment changed everything. The British regulars arrived, the Manx garrison was disbanded, and the island’s military character shifted from self-defence to imperial service. Manx soldiers would fight at Trafalgar, at Waterloo, and across the battlefields of the Napoleonic Wars — not as defenders of their own island but as subjects of a Crown that had bought their sovereignty.
The Lord’s Garrison
The ancient militia was one of the Lord of Mann’s prerogatives — Manx men, armed and trained, defending their own island under their own officers. It was part of the fabric of Manx self-governance, not a distant imperial obligation.
— Captain Dawson’s warning to London
Fencibles, Sailors, and the Wars with France
When Napoleon threatened invasion, the island raised its own Fencible regiments — the most Manx military formation since the old garrison. Manx sailors served across the Royal Navy. At Trafalgar, they stood on the quarterdeck of HMS Victory.
Manx Men on the World Stage
Internment and Service
In the twentieth century, the island’s military story took a different turn. Mann became a place of internment — first for civilian prisoners during the First World War, then again during the Second. The camps at Knockaloe and Mooragh held thousands of men behind wire on an island that knew something about what it meant to have your sovereignty taken away.
The Soldiers on the Jury
In November 1662, William Christian — Illiam Dhone — was tried for treason. The indicting jury included soldiers from the garrison. The shot that killed him on Hango Hill on 2 January 1663 was fired by one man, but the military establishment provided the mechanism.
Continue exploring People
The soldiers and sailors served an empire that had bought their island. Explore the merchants whose livelihoods were destroyed, the families who endured, and the emigrants who left.
Back to People Emigration The Families