After the loss of French and Belgian coalfields to the Allied war effort, Welsh coal was all the more important. This meant that the war saw some form of prosperity return to the south Wales ...

The south Wales coalfield, more dependent upon exports than the other British coalfields, was the worst hit. The decline in the foreign demand for coal was caused by increased coal production ...

After the loss of French and Belgian coalfields to the Allied war effort, Welsh coal was all the more important. This meant that the war saw some form of prosperity return to the south Wales ...

After the loss of French and Belgian coalfields to the Allied war effort, Welsh coal was all the more important. This meant that the war saw some form of prosperity return to the south Wales ...