[4] Goyeneche went to Madrid where he met with the Argentine ambassador Adrián Escobar and consul Aquilino López and the following the month the three crossed into France where they held a meeting with Pierre Laval, president of the collaborationist Vichy regime.
At this meeting they discussed the possibility of an Argentine intervention in Europe in an attempt to negotiatie an end to the war, as well as Escobar's Hispanidad vision of a new Spain-led sphere of influence in Latin America.
[9] Accompanied by Gottfried Sandstede, an old friend of Goyeneche who had worked in the German embassy in Buenos Aires before being expelled for his spying activities, he visited the Eastern Front to inspect the men of the Blue Division.
[9] Upon his return from Russia Goyeneche met Otto Reinebeck, the chief of the Latin American Bureau at the Nazi Foreign Ministry, and requested for him to arrange meetings with Adolf Hitler and Joachim von Ribbentrop.
Under instructions from Ribbentrop, who hoped that Argentina might be enticed into the war, details of the meetings were allowed to be wired by telegram back to Guiñazú and Amadeo by Goyeneche.
The United States diplomat W. Wendell Blancke claimed that, while in service to General Dwight Eisenhower at the end of the war in Germany, he saw captured Nazi documents that described a meeting between the two taking place on 7 December 1942 at which Hitler reiterated Ribbentrop's pro-Argentina stance.
[17] Goyeneche also sought and received a guarantee from Mussolini that the Axis powers had no desire to end Argentine independence or that of any Latin American state, a common claim of Allied propaganda in the region.
[20] When Peron was overthrown in 1955 Goyeneche initially found himself remaining in favour as his close friend Pierre Daye had him appointed culture and press secretary at the Casa Rosada.