Beginning in 632 AD the Arabs, united by the new Islamic faith, began their first incursions into the Sasanian Empire as well as the Byzantine state. Due to the long, drawn out, conflict between the Byzantines and Persians (and owing a fair bit to religious divisions within those states as well) the Arabs were able to conquer all of Persia, Egypt and Mesopotamian. Its a story that is pretty well known to anyone who studies history.
I've often heard it said that the invasions were partially the result of population pressures within the Arabian peninsula itself; you had a growing population and not enough land/resources to fully support it. In many ways, these were similar circumstances to what led the Norse to their raiding and settling in Europe about two centuries later. Coupled to this, you had the fact that the entire peninsula had been recently united and also which had embraced a new faith.
So, my question to you is: Assuming that the population pressure theory is correct, how else might the Arabs have expanded. Lets assume that the Byzantines and Persians hadn't fought one another to a bloody standstill and were not so depleted. If the Arabs expand in that direction, they are much less successful; possibly picking up some territory, but not nearly the glorious victories of OTL. Where else might they expand?
I've often heard it said that the invasions were partially the result of population pressures within the Arabian peninsula itself; you had a growing population and not enough land/resources to fully support it. In many ways, these were similar circumstances to what led the Norse to their raiding and settling in Europe about two centuries later. Coupled to this, you had the fact that the entire peninsula had been recently united and also which had embraced a new faith.
So, my question to you is: Assuming that the population pressure theory is correct, how else might the Arabs have expanded. Lets assume that the Byzantines and Persians hadn't fought one another to a bloody standstill and were not so depleted. If the Arabs expand in that direction, they are much less successful; possibly picking up some territory, but not nearly the glorious victories of OTL. Where else might they expand?