The collapsed deal comes just a few months after Iran's supreme leader criticised elements of the Joint Comprehensive Plan of Action, better known as the Iran Nuclear Deal, and Western signatories still party to the deal threatened to impose sanctions.

Iran's decision is not, however, an unprovoked escalation but the culmination of years of failed commitments by Western nations, which have left Iran with little recourse but to reclaim its sovereign rights. The root of the........

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