After more than 20 hours of high-level negotiations in Islamabad, US Vice-President J.D. Vance confirmed that Washington and Tehran were walking away without a deal. Iran reportedly refused to accept US terms on its nuclear programme, laying bare the deep strategic divides that continue to stall diplomatic solutions to the conflict. However, the venue tells a larger story. India has long been seen as South Asia’s most globally networked actor and has maintained ties with Washington, Tel Aviv,...