.The section “From Mules to Motors” opens with the following lines: “When the war broke out, in 1914, many countries still used outdated methods of fighting. Some armies even sent their soldiers into battle on horseback carrying spears.”

Trench warfare is a type of land warfare using occupied fighting lines largely comprising ... On the Western Front in 1914–1918, both sides constructed elaborate trench, ... In early modern warfare troops used field works to block possible lines of advance. ... Grand battles with the old maneuvers were out of the question.

Explanation:

the answer is )multiethnic

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.