D. To protect soldiers from machine gun fire
People dug trenches to keep "causalties down"
hope this helps
In the mid-1800s, western settlers and American Indians differed in their views about how the land should be used. On the other hand, white settlers sought to expand westward, exploiting the natural resources of the territory and erecting new towns in those places.
<span>The Constitution equally favors agriculture, commerce, and manufacturing.</span>
The U.S. government took over and ran the railroads from 26 December 1917 to 1 March 1920. During the period of government operation, the tracks were obliged to carry a heavy volume of traffic with little attention to replacements or ordinary maintenance.
