The Sahara desert is important for a multiple of reasons. One is that although it is a desert, there are many fertile areas of land making it great for farming and supporting life. It also acts as a natural barrier in between north and south Africa, which was able to impact trade with the South, slowing down innovation on both sides.
Explanation: after germany being in a depression hitler said he will make germany more powerful which motivated the germans also the treaty of versalles these made people support him