The fight for South Korea half a century ago is sometimes known as the forgotten war.
But 50 years on, members of the British Korean Veterans' Association (BKVA) remembered fallen comrades with a display of photographs and roll call of names at the Redoubt Fortress in Eastbourne.
More than 100 ex-servicemen and their families were commemorating the anniversary and protesting against the possible closure of the military museum, contained in the barracks rooms in the fort.
The BKVA was joined by several veterans' groups, including former soldiers with the Eighth King's Royal Irish Hussars, like Major Bob Smith.
Maj Smith had travelled from Kent after hearing the museum might be closed as part of Eastbourne Borough Council's budget cuts.
He said the museum represented an important part of the national heritage and was an educational asset.
The event was organised by Peter Woodham, of the BKVA.
The association's photographs show modern-day Korea and some of the war graveyards, tended by children.
He said: "We have shown this display at many events, such as the Ardingly South of England show.
"The In Memoriam part is all the names of the 1,080 or so British service men who died out there but there were millions of others. That's the main reason we are here but since the possible closure came up we thought this would illustrate a good reason why it shouldn't."
The museum, which houses collections of military artefacts, faces potential closure after council leaders announced they were to trim £200,000 each from the tourism, theatres and parks and gardens budgets.
The proposals are likely to go out to public consultation before final decisions are taken.
Troops from various countries were called into defend South Korea in 1950 after it was invaded by the North.
China soon became involved in the war and soldiers found themselves dug into trenches less than a mile apart from their enemies. An armistice agreement was finally signed in 1953, after two years of negotiations.
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