If the Shah was not overthrown in 1979 and his rule continued. How would Imperial Iran support the Mujahedeen in Afghanistan? Would American aid still be primarily delivered via Pakistan as per OTL or would the aid be bifurcated between Imperial Iran and Pakistan?
Personally, I think that we might see support based on denomination lines with Imperial Iran supporting the Hazara Shi'a minority, with Pakistan supporting the Pashtun guerrillas?
I wonder if we will end up with blue on blue engagements with Iranian volunteers clashing with Pakistani volunteers.