Fire Brigades Union defends strike in Wales
Fire services in Wales have returned to normal after the second four-hour strike by firefighters in a row over pensions.
Fire chiefs said arrangements for cover during the walk-out worked well and they praised crews who stayed on at incidents already under way.
Friday's strike began at 18:30 GMT and ended at 23:00. A further strike is planned on Monday morning.
The UK government has described the action as "completely unnecessary".
Cerith Griffiths, secretary of the Fire Brigades Union in Wales, explained why they took the action to BBC Wales' Matt Murray.