Attention! General Pershing is calling you if you are a mechanic. General Pershing wants you right behind the "Firing Line" with him. This is a war of a mechanical age. The soldier at the "front" must be backed up by thousands of co-workers. Our big guns must be re-lined. Our gun carriages, artillery vehicles, motor trucks, tractors, tanks, machine guns, etc. must be kept in condition for the soldier going "over the top." ...