Re: If Iran and Pakistan went to war...
Sistan-Baluchistan is just as poor as Pakistani part of Balochistan.
Chahbahar port is in sistan. The iranis have done a good job? of dominating and relegating the balochi tribals to the background. Our army doesn't even have bases in balochistan...
And fallen pinnate beta, gone are good 'ole days.. Iran is a shia theocracy and a strong sunni pakistan will always cause some deep burn inside their hearts.. Granted, they are isolated due to america against nuke program and not enough regional friends [though now they have one ally, Iraq], but they are an unpredictable bunch. The lack of regional allies in the past was one of the chief reasons shah courted pakistan.
PS What about the growing strategic indian-iranian relationships?