Answer:
They couldn't leave the fields
Motivation:
The only way to leave the fields was to die, for that reason they usually sang when one of them: died
People who where Black Air Force 1's
People who ask for more cheese
Me
Africans
Answer:
The Germans invaded Belgium which allowed them to attack France from the North. If successful, the Germans would move their armies East to fight Russia, avoiding a two front war.
The important natural resource in West Africa that the Songhai Empire controlled was salt.
This salt was predominantly found in the Sahara desert - there are still a lot of salt mines in this West African desert. The Songhai Empire heavily relied on salt trade, which brought most of its money into the empire - this is the reason why it was so powerful at the time - because of salt and gold.