The insurgents in Kashmir are mostly not Kashmiris. The Taliban are Afghans but they are used as tools of the Pakistanis. And the Pakistani soldiers help the Taliban. This leads to the dilemma, shall the Taliban be recognized diplomatically. The Saudis are Fundamentalists.
Afghan militants can spread north into Central Asia.
After the fall of Taloquan, Moscow and Iran were prepared to make a deal with the Taliban. It is in Russia's interest to keep Central Asia in turmoil as it is their only leverage in the region. The Russians do not want a Taliban victory. The real issue in Central Asia is the consequences of a supranational Islamic military that is closely associated with Pakistan. There will be closer links between India and Iran.