In OTL the battle of Nahavand was one the major defeats for the Sassanid Empire. Despite having superior numbers, they were beaten by the Arabs, and afterwards, they were able to conquer Persia.
So what if the Persians win? Will it allow them to keep the Arabs out of Persia, or will the Arabs conquer Persia anyway?
I think Persia would want to reconquer Mesopotamia, but I think its hard for them to do that, so what will happen next?
And what is the internal position of the Sassanids? I know that it was probably not very strong at the time, but a victory could allow them to strengthen their position.
So what if the Persians win? Will it allow them to keep the Arabs out of Persia, or will the Arabs conquer Persia anyway?
I think Persia would want to reconquer Mesopotamia, but I think its hard for them to do that, so what will happen next?
And what is the internal position of the Sassanids? I know that it was probably not very strong at the time, but a victory could allow them to strengthen their position.