What necessitated the inhabitants of Neolithic Jericho to construct fortification walls?

Question

Quizplus · Accepted Answer

The most likely reason for the construction of fortification walls in Neolithic Jericho was to protect the inhabitants from marauding nomads. There is no evidence to suggest that the city was used as an offensive base for invasion, protection from natural disasters was not a major concern during this period, and there is no evidence to suggest the promotion of a powerful merchant class as a reason for building the walls.

What Necessitated the Inhabitants of Neolithic Jericho to Construct Fortification