With Mosley’s recommendations he later progressed to Berlin where, unable to meet Chancellor of Germany Adolf Hitler, he was able to see Foreign Affairs Minister Joachim von Ribbentrop, as well as Alfred Rosenberg. In Rome he was likewise unable to see Mussolini, instead meeting with Secretary Achille Starace, though their mutual unintelligibility and failure to use French as a medium was no use. Nevertheless, Campbell’s tour across the fascist powers of Europe left him deeply impressed with the ideology. However, on his return to Australia, Campbell's support for an "openly pro-fascist policy" was met with strong opposition from the Guard's "anti-fascist moderates". These attempts to establish the movement as what historian Keith Amos dubs "Australia's first fascist party" are thought to hastened the decline of the New Guard, with many previous members unhappy with the ideological progression that had taken place. One year later he would pen his manifesto "The New Road" which put forward his case for an Australian application of Italian corporate statism.