Answer:
<h2>When he arrived in Europe, Pershing had openly scorned the slow trench warfare of the previous three years on the Western Front, believing that American soldiers' skill with the rifle would enable them to avoid costly and senseless fighting over a small area of no-man's land.</h2>
It was "Russia" that was the last to industrialize, since while most of nations were going through the industrialization process, Russia was in the middle of various uprisings that eventually led to the Civil War of 1917.
Your answer is freedom of rely
There are more than three reasons why this happened of course but the best three are there they needed more land, resources, and some way to escape the cold.
