Now that Iran nuclear deal is completed, the attention of western news media and political commentators is predictably focused overwhelmingly on the opposition to the agreement within the US Congress and from Israel and the Saudi-led Sunni Arab coalition.

That media lens misses the real significance of the Joint Comprehensive Plan of Action, which is that Iran succeeded in negotiating an agreement with the United States that upheld its national right to a nuclear program despite the obvious vast disparity in power between the two states. That power disparity between the global hegemon and a militarily weak but politically influential regional "middle power" has shaped not just the negotiating strategies of the two sides during the negotiations but, more importantly, how they came about in the first place.