Answer:
Germany's resumption of submarine attacks on passenger and merchant ships in 1917 became the primary motivation behind Wilson's decision to lead the United States into World War I. Germany also believed that the United States had jeopardized its neutrality by acquiescing to the Allied blockade of Germany.
<span>The social changes which occurred after World War I were:
</span><span>
Increased mobility through technology.</span>
New roles for women.<span>
</span>Breaks with tradition.
It was all because of the women efforts, they received the right to vote and many restrictions on women are taken off. Additionally, as a result of the social change in technology Tanks and Gas warfare technology were introduced.
