Since they have just gotten over war and money was good for one side but they had lack of money on the other side. From that case it was hard for them to agree over each other whether they could trade or not.
The Nile river was used as a major trade route. Also, they built deep holesin the ground for when the Nile floods every year. this way they had water to last.
Positive effect:
Benefited the people at the top.
A flexible system making power and decision.
Allowed stability and security.
The lord had a unique relationship with his vassals.
Created an obligation for the powerful to help and protect the weak.
Negative effect:
90% of population were were commoners or peasants.
Serfs has no say in that time.
The kings were not in direct control of all their subjects.
Relied on gaining status through work and power.
Answer:
the region has natural areas and histrical sites