Military medics hold St David's Day march in Risca, Caerphilly
1 March 2014 Last updated at 18:14 GMT
Members of 203 (Welsh) Field Hospital held a St David's Day parade in Risca, Caerphilly, led by the Band and Corps of Drums of The Royal Welsh.
The volunteers - nurses, doctors, dentists and paramedics in the NHS in Wales in civilian life - each received a leek as part of St David's Day tradition, as well as their campaign medals.
Commanding officer Tina Donnelly and Capt Lyndon Davies explained what the event meant to their service colleagues.
Matt Murray reports.