The United kingdom, France and Germany have launched the mechanism of dispute as provided for by the agreement on the iranian nuclear (Jcpoa – Joint comprehensive plan of action) for the failure by Tehran to the conditions of the covenant. It is announced by the High representative of the Eu’s external policy, Josep Borrell . The three Countries, which in 2015 had signed the agreement with the United States, Russia and China, have informed in a letter to mr Borrell, who oversees the agreement, of the fact that they are activating this “mechanism of dispute”, thus increasing the pressure on the islamic Republic.