Analysis: Expert says questions remain about US-Iran dealーNHK WORLD-JAPAN NEWS

News of the deal between the US and Iran came as a surprise to many. Professor Tanaka Koichiro, an expert on the Middle East from Keio University, says it remains to be seen if the deal will hold.

More stories on the Middle East: https://www3.nhk.or.jp/nhkworld/en/news/tags/56/　

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