Iran's decision to skip the second round of peace talks scheduled in Islamabad, citing the US's 'excessive demands, unrealistic expectations,' shifting positions, and an ongoing naval blockade as violations of a fragile ceasefire, is framed in most outlets as a bilateral US-Iran impasse following recent conflict. However, Pakistan's central role as mediator—evident in high-level contacts between Pakistani leadership and both Washington and Tehran—reveals deeper structural vulnerabilities along the Iran-Pakistan border. This rejection underscores how Balochistan has become a volatile proxy arena where Sunni militant groups like Jaish al-Adl and Jundallah, operating from Pakistani territory, launch attacks into Iran's Sistan and Baluchestan province, prompting retaliatory strikes as seen in the 2024 cross-border exchanges. Recent analysis shows the Iran war has already reconfigured regional militancy, with surges in trans-border activity, alliances between Baloch separatists like the BLA and jihadist outfits such as TTP and IS-Khorasan, and a resurgence of sectarian fault lines. Sunni jihadist groups in Iran pursue anti-Shia campaigns, while Iran-backed Shia militias like Liwa Zainabiyoun have reemerged in Pakistan, targeting perceived adversaries and raising the specter of Sunni-Shia proxy escalation spilling across borders. Pakistan, a nuclear power, faces accusations of harboring militants while simultaneously accusing Iran of supporting anti-Pakistan Baloch groups; a miscalculation here could draw Islamabad directly into conflict amid refugee flows, arms proliferation, and competing external influences from India, Israel, and others. While major outlets emphasize Trump's envoys and the Strait of Hormuz blockade, they minimize how these talks' failure risks amplifying Baloch separatism and sectarian militancy into a wider regional conflagration with nuclear undertones. Credible reporting from early 2026 already warned of increased terrorist pushes into Pakistani Balochistan and the potential for multipronged warfare as Middle East conflicts migrate eastward.