Answer: Trench warfare
Explanation: Trench warfare became archetypically associated with World War I (1914–1918), when the Race to the Sea rapidly expanded trench use on the Western Front starting in September 1914
Army that demand cash payment redemption of their service certificates
B.- many were bound to the land and lived miserably some even got killed because of the problems going on in russia<span />
This is a hard question but google the United States map . I definitely know that Southwest is the first one . Hope this helps you .
B. Other two don't make sense.