Americans still busy - digging trench.
Trench warfare on the Western Front still going on; 1918. American soldiers pushing truck along a track. MS digging trench, they stand in the partial trench or on side; and shovel earth into moving trucks on the track.
MS soldiers at work with pickaxes. MS shovelling again. Brief shot of the men pushing the heavy looking iron trucks set on top of little carts; on the track.