What was vichy france during world war ii ?

What is the meaning of the statement that all is vanity or meaningless? use full sentences

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.

Explain how the woman's auxiliary contributed to the war effort.