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Before 8 September 2018, will any of the remaining signatories to the Iran nuclear deal announce they are withdrawing?

This question was generated from the IARPA Global Forecasting Challenge.

China, France, Germany, Russia, the United Kingdom, the United States, the European Union, and Iran signed the Joint Comprehensive Plan of Action (JCPOA) in July 2015 (The Washington Post, Al-Monitor). The United States announced its withdrawal from the deal on 8 May 2018 (NY Times).

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