The prize is awarded by the city of Aachen, which was the medieval capital of the Carolingian empire, and it is named after the Frankish leader Charlemagne who led an empire which covered areas including modern France and Germany, Belgium, Austria, Switzerland and northern Italy.
Rouhani said that the European Union states, especially Germany, France and United Kingdom, should announce their stance on guaranteeing Iran's interests in the JCPOA after Trump pulled the USA out of the worldwide deal on Tuesday.
Meanwhile, Europe's heavyweight economies took steps yesterday to safeguard their commercial and political interests in Iran, seeking to keep the nuclear deal with Tehran alive after Washington pulled out and said sanctions would follow. "That's the task of the future".
Merkel, along with French President Emmanuel Macron and British Prime Minister Theresa May, has criticized Trump for pulling the USA out of the agreement and vowing to reinstate economic sanctions on Iran.
French President Emmanuel Macron urged Europe on Thursday to unite and exert a self-confident "European sovereignty" in the face of an increasingly complex world and unilateral American moves on issues such as the Iran nuclear deal and climate change. Macron received the prestigious Charlemagne Prize for his "contagious enthusiasm" for strengthening European Union cohesion and integration. Most recently, Trump's decision to pull out of a major nuclear energy and arms control deal with Iran has earned him criticism from Germany and other European nations, including Russian Federation, that support the deal. "Other powers.haven't kept their word", he added, without specifying the powerful countries he was referencing. He said that Europe must make its own choices, rather than go along with those made by others. "Should we renounce our own choice?".