Negotiations concerning a potential American return to the Iran Deal have opened in Vienna. The diplomacy is complex. While the JCPOA is generally treated as involving only the U.S. and Iran, it also includes Russia, China and three European countries: England, France and Germany. Germany is exceptional because it is (aside from Iran) the only non-nuclear power in the talks, but also because of its long-standing special relationship with Iran. Political scientist Matthias Kuentzel studies this relationship and sheds light on several aspects including nuclear politics, anti-Americanism in Europe, and the anti-Semitism of the Iranian regime. He builds on his book Germany and Iran: From the Aryan Axis to the Nuclear Threshold and some of his articles are available at matthiaskuentzel.de