The Islamabad MoU between Trump and Iranian President Masoud Pezeshkian was originally signed on what date?

Explanation: The Islamabad MoU was signed remotely on 17 June by Donald Trump and Iranian President Masoud Pezeshkian, establishing a 60-day extension of a ceasefire to allow negotiation of final terms to end the earlier conflict. The agreement's collapse preceded the eruption of the broader 2026 Iran war on 28 February, when Israel and the United States launched an air war against Iran that killed its supreme leader and several other senior officials, dramatically escalating the confrontation.