After more than 20 hours of negotiations in Islamabad, talks between the US and Iran have ended without an agreement. Washington is now striking a tougher stance; but plans for a shipping blockade around the Strait of Hormuz which it hopes will give it more leverage, has the downside of pushing up oil prices. While Tehran, emboldened by its own resilience, says the ball is in the US court. With both sides now digging their heels in publicly and the wider conflict still unresolved, what is really shaping the decisions being made, and where could this head next? We speak with former Malaysian ambassador, Dato' Dr. Ilango Karuppannan, Adjunct Senior Fellow at the S. Rajaratnam School of International Studies, and Founder of the YouTube channel, Diplomatify.

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