ISSUED BY THE MINISTRY OF LABOUR AND NATIONAL SERVICE AND THE MINISTRY OF FUEL AND POWER BUILD UP THE A Call for Volunteers "This is a call ... to build up the mining army from all walks of life. We must have a steady flow of men who will come forward and put their backs into it, to get the coal we must have, to drive on to speedy victory." A message to the 18's When you register on Saturday, September 18, you can choose underground service in the Mines as an alternative to service in the Armed Forces.