The answer is <span>Rome becoming a republic.
here are the dates </span><span>It became a republic in 509 BC, Julius Caesar is assassinated in 44 BC, and Rome becomes an empire when Augustus takes power in 27 BC.</span><span />
The freedom of jobs? im terribly sorry :(
"<span>Americans thought the government had not done enough to help encourage democracy and end oppressive governments" is the best answer from the list. </span>
<span>Industrialization made it possible to develop new technologies in warfare like create more advanced guns, planes, ships, bombs, and similar things. Countries were richer so they could invest in militaries, and the machines made everything more precise and better which resulted in a stronger, more developed military overall.</span>