This something ive been thinking about after watching multiple videos about the middle east and the parts that caught my eye the most were when they talked about the states fromed by Bedouin tribes like the Saudi state or the dozen+ other ones that existed in the Arabian peninsula. I couldn't get my head around why these nomads were able to form these emirates/states in the desert even though they didnt have much.
What it ultimately came down to was that the penisula recived almost no rainfall and this meant the only real source of water were several large oases and the occasional valley. You couldn't just establish settlements anywhere everything was concentrated in these oasis and so regardless of how much trade routes might have declined these oasis towns could never be abandoned. This of course naturally encourages centralization since whoever controlled these oasis towns controlled the wealth from the trade. Thus you had these nomad states in a sense.
What it ultimately came down to was that the penisula recived almost no rainfall and this meant the only real source of water were several large oases and the occasional valley. You couldn't just establish settlements anywhere everything was concentrated in these oasis and so regardless of how much trade routes might have declined these oasis towns could never be abandoned. This of course naturally encourages centralization since whoever controlled these oasis towns controlled the wealth from the trade. Thus you had these nomad states in a sense.