The Pak military was involved in finding a solution to the issue:
https://www.samaa.tv/news/2021/11/coas-efforts-crucial-for-striking-govt-tlp-pact/
Perhaps they started it as well?
There’s the Baluch ethnic group that lives in parts of Iran and Pakistan, and they are in effect autonomous. The fake state of Pakistan tries to flex muscle there from time to time and generally fails. The Iranian mullahcracy is Shia, and the Baluch are Sunni. From the map I’d guess that’s the really dry expanse that killed a chunk of Alexander the Great’s army with thirst on their way back from India.