A march to commemorate the Llanelli riots of 1911 has also been used to demonstrate against proposed changes to health services in the area.
It's the second time the Railway Strike Committee has held an anniversary march. Organisers say they now need to fight another battle for their health service.
Nicola Hendy reports.
It comes after Hwyel Dda Health Board announced plans for possible changes to the NHS in mid and west Wales.
Under the proposals, which are currently out to consultation, Prince Philip Hospital's A&E unit would be reclassified as an 'urgent care centre'.
Hywel Dda's proposals also include the possible closure of three small hospitals. They are Mynydd Mawr hospital at Tumble in Carmarthenshire and Tregaron and Aberaeron hospitals in Ceredigion. All three would be replaced by community resource centres.
A spokesperson for the Hywel Dda Health Board says :