The Women in Industry Service (WIS) was established as part of the DOL in July 1918 to address the labor issues of women separately from those of men, specifically as they related to the war effort.
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C. A series of unexplained fires and earthquakes was the cause
The answer is D, having to fight a two-front war.
The Schlieffen plan was the German strategy to quickly take out France so that they could focus all their troops on Russia.