[2] Upon returning, he became the liaison officer of Communist International (Comintern) in the Netherlands, his main duty being to maintain on-going radio contact with Soviet intelligence.

[8] his was an organisation that was established in several cities including Amsterdam, that consisted of several dozen young rebellious people who refused to do their military service, instead, spending their time going on rambles, and making music as well as planning bombings.

Postma strongly supported trade unionism, the soviet revolution, dictatorship for the proletariat and the group initially shared his enthusiasm, but some eventually rejected his views.

The heated debates eventually led to a group withdrawing from the SAJO that included Goulooze, leaving to join the Federation of Social Anarchists of which Postma was a member.

[15] The De Spelbreker newspaper was created by the Committee of Action, a group of the Dutch labour movement, made up of Communists, Syndicalists and Anarchists, who wanted to protest the 1923 Fleet Act and the 25th anniversary of Queen Wilhelmina of the Netherlands.

Goulooze sided with the NSV and became the organiser of a youth recruitment office at a Local Labour Secretariat (PAS, Plaatselijke Arbeids Secretariaten) in Amsterdam.

[21] When the academy came to public notice, Goulooze defended it existence, but also took an active part in running the different CJB departments that included canvassing, leafletting, pasting up posters and demonstrating.

[24] During this period Goulooze acted to ensure that communist propaganda in the form of the newspapers Op de bon and Het Panster reached every part of the Royal Netherlands Army.

[33] In 1932, he published a book by N. Bogdanov, Het eerste meisje; een romantische geschiedenis (The first girl; a romantic history), about life for members in the Komsomol.

[35] During the period he worked there, Goulooze published The ABC of Communism written by Nikolai Bukharin and Yevgeni Preobrazhensky and the Marxist Library in 24 volumes.

[43] At the time, Goulooze was in Berlin and met Georgi Dimitrov, who had been arrested, after being seen talking to Marinus van der Lubbe, who was accused of starting the fire.

[52] In the period immediately after the Nazis seized power on 30 January 1933, Goulooze made several trips to the Soviet Union, Prague and Paris in the context of reorganising the Comintern.

[1] In the same period, between 1935 and 1937, Dutch CPN member, August Johannes van Proosdy was recruited by Goulooze and sent for technical training in wireless telegraphy techniques in the Soviet Union.

[2] After the occupation of the Netherlands by the Wehrmacht that began on 10 May 1940, a meeting was held by the CPN on 15 May 1940, where it was realised that many of the members would not survive the war and the party itself would have to operate illegally.

[2] In 1938, CPN member Jan de Laar was recruited by Goulooze and sent to the Soviet Union for technical training in wireless telegraphy and intelligence techniques.

The editorials that later appeared in the future versions of the De Waarheid, made the point in clear language, stating it was not about communism, it was about national liberation and return of democratic freedoms.

Together with Willi Gall, Knöchel began publishing communist literature that included various leaflets and bulletins, for example "The Enemy Stands in Your Own Country", for distribution in Berlin.

[91] When he arrived in Berlin, Knöchel started to produce the hectographed "Der Friedenskämpfer" (“The Fighter for Peace,”) that offered detailed accounts of German atrocities across the eastern front.

[93] At the time, Knöchel was using two couriers, his common-law wife Cilly Hansmann [de], and Charlotte Garske to move intelligence between Berlin and Amsterdam for transmission to the Comintern.

In the late summer 1942, the Comintern and the KPD leadership through Wilhelm Pieck began to urge Goulooze to establish a radio communication link in Berlin.

Once that was completed, it was arranged for a letter to be sent by Willem Visser, an employee of a small Berlin based electricity company that was part of AEG, to offer a position of employment to Van Proosdy, as an electrician.

In early 1942, Goulooze arranged to receive Soviet parachutists by delegating an area close to a body of water in Veluwe, where they could be safely accommodated.

[106] After he was tortured, Knöchel agreed to become a V-Mann and held a number of meetings with van Proosdy in the normal course of operation, making him effectively under the control of the Gestapo.

Comintern agent Eugen Fried (Clément), Goulooze's collaborator and liaison with the French Communist Party was shot dead in Brussels on 17 August 1943.

Harmsen posits that Goulooze must have been disappointed and even expressed some doubt about the value of the work that he had done for the organisation up to that point[119] but ultimately his revolutionary zeal wouldn't have been extinguished.

He came to know about the trials of the group associated with Leon Trotsky after several Comintern officials whom he had met when he visited the Soviet Union and spoke to on the radio were replaced and this swayed his ideology to such an extent that he had a real fear of Trotskyism.

[135] De Groots' found his plan wasn't as popular as he believed, as there was fierce disagreement in the party, from members from different parts of the country, who were steeped in the doctrine of Marxism-Leninism.

De Groot and the leadership believed that the cooperation between the United States, Great Britain and the Soviet Union would continue, which would eventually lead to the merging of the social democrats and the communist parties.

Goulooze also published American and Russian authors, for example, Howard Fast, Ernest Hemingway, Upton Sinclair, Maxim Gorky, Mikhail Sholokhov and Ilya Ehrenburg.

[142] On 8 July 1947, Goulooze wrote a letter to the CPN executive demanding that he be brought before the political control commission, promising to account for his "illegal" work.