If this is about Vietnam then the answer is C
<span> was a field </span>army of<span> the French </span>Army<span> stationed on the </span>Italian<span>border and used for operations in </span>Italy<span> itself. Though it existed in some form in the 16th century through to the present, it is </span>best<span> known for its role during the French Revolutionary Wars</span>
They probably had no other choice. During that time, it was hard to get a job with a solid pay for many people (especially immigrants). If they decided to quit, they would have to find other jobs, which probably have bad conditions as well. If they couldn’t find any good jobs, then they would basically become homeless and wouldn’t be able to pay for themselves and their families. (Back then, families were much more important.)
Generally speaking, the Industrial Revolution inspired a "heightened" interest in Africa by European nations, since they looked to Africa to acquire most of their natural resources.
D-Day was the beginning of the end for not only the Germans but Hitler most of all. D-Day forced the Germans to fight a two front war again just as they had in WWI. Yet again the Germans could not handle war on both sides of them.