WWII’s Most Overlooked Incident: The Death of Fake Nazi Martyr JJ
Early 1941. The Netherlands has been occupied by the Nazis since May of the previous year. While many try simply to survive, some Dutch citizens choose to resist the occupation. Others, however, motivated by ideology, fear, or opportunity, collaborate with the Nazis. On 11 February 1941 Amsterdam‘s streets are controlled by force and intimidation, while anti-Jewish measures are enforced with escalating brutality.
Jewish neighbourhoods are isolated, livelihoods destroyed, and violence is no longer a byproduct of war but a calculated instrument of rule. Uniformed collaborators are encouraged to enter areas they have been ordered to avoid, not to maintain order, but to provoke clashes that can be exploited. One of them wears a piece of cord around his right wrist, attached to a rubber garden hose weighted with iron.
He has turned it into a crude, deadly weapon, always ready to strike. His name is Hendrik Koot. Hendrik Evert Koot was born on 5 April 1898 in Amsterdam, where he grew up and spent most of his life. In 1935, amid rising polarization and radicalization in Dutch society, Koot and his wife, Elisabeth van Groningen, joined the National Socialist Movement, a Dutch fascist organization modelled closely on Adolf Hitler’s Nazi Party.
Their decision placed the family firmly within an extremist political subculture that rejected parliamentary democracy and embraced authoritarian rule. The marriage of Koot and his wife Elisabeth produced eight children. The two eldest left home early and went to sea in the merchant navy. The eldest son later fought on the side of the Allies, while the second eldest did not return until after the war had ended. The remaining children followed a very different path.
All became members of fascist or National Socialist organizations. Two sons joined the SS, one entered the Dutch Landstorm, a Nazi-aligned paramilitary home defence force, and another became a member of the Nationale Jeugdstorm, the Dutch youth organization modelled on the Hitler Youth. For a time, Koot worked for the firm of Abraham Asscher, a Jewish diamond dealer in Amsterdam, a fact that stood in stark contrast to his later actions and affiliations.
Within the National Socialist Movement and its paramilitary wing, the WA, Koot advanced steadily, eventually reaching the highest non-commissioned officer rank. The Second World War started on 1 September 1939 with the German invasion of Poland. On 10 May 1940 Hitler invaded the Netherlands and soon after a civil administration was installed under the SS auspices and Arthur Seyss-Inquart was appointed as the Reichskommissar of the Netherlands. Among his first steps were a series of laws posing economic
discriminations against the Jews. During 1940, the German occupation authorities banned Jews from the civil service and required all Jews to register their assets and business enterprises. In January 1941, the German authorities required all Jews to register themselves as Jews.
The Germans claimed that the requirement that all Jews register was for their own safety, but the truth was that it enabled their future deportations as the Nazis could easily track them down. A total of 159,806 persons were registered, including 19,561 persons born of mixed marriages. The total number included some 25,000 Jewish refugees from the German Reich.

By early February 1941, street violence in Amsterdam had ceased to be incidental. It had become deliberate, organized, and increasingly aggressive. Members of the WA moved through the city with growing confidence, targeting Jewish neighbourhoods and businesses. Café owners were pressured to display newly issued signs declaring “Jews Forbidden” and “Jews Not Wanted.
” Those who refused were intimidated, harassed, or assaulted. In and around the Jewish quarter, tensions escalated rapidly. On the afternoon of 11 February 1941, Hendrik Koot took part in a provocative action as approximately forty-five WA men marched through Amsterdam’s Jewish quarter. Moving in formation, singing and chanting, the group openly sought confrontation.
Their march led them toward Waterlooplein, a central square in the heart of the Jewish district, where violence was intended rather than avoided. Word of the action spread quickly, and a communist fighting group was warned and moved in to defend the area. In the early evening, as the WA entered the square, a violent clash broke out.
The communist fighters broke open nearby storage facilities and armed themselves with iron objects that could be used as clubs. People struck each other at close range with batons, blackjacks, and iron bars. Bottles of bleach were thrown, and some witnesses later reported that shots were fired. The confrontation lasted only a few minutes, but it was intense and chaotic.
When the fighting ended, Koot was left lying unconscious in the street. Police later found him still holding a homemade blackjack, a rubber hose weighted with iron and strapped to his wrist. He was taken to hospital with severe head injuries, most likely caused by a heavy object such as an iron bar or club. Hendrik Koot never regained consciousness and died three days later, on 14 February 1941. He was 42 years old.
In the days following Hendrik Koot’s death, Hanns Albin Rauter, SS and Police Leader in the Netherlands, transformed the incident into a propaganda instrument. Writing in the National Socialist Movement newspaper Volk en Vaderland, Rauter presented Koot’s killing as an act of alleged Jewish savagery.
He claimed that a Jew had torn open the victim’s artery with his teeth and sucked out his blood, deliberately invoking medieval ritual murder legends. The language was graphic and inflammatory, designed to incite hatred and to portray Jews as a violent, subversive threat to public order. These claims stood in direct contradiction to official findings.
According to a police report dated 18 February 1941, Koot had suffered a single severe head injury, most likely caused by a blow from a heavy object such as a club, iron bar or an axe. No evidence supported the lurid accusations circulated in Nazi publications. The resistance newspaper Het Parool reported these findings on 25 February 1941, directly contradicting the version promoted by the National Socialist Movement.
Despite this, Nazi authorities and their Dutch collaborators continued to disseminate the false narrative. Koot’s funeral, held on 17 February 1941, was deliberately staged as a political demonstration. Around two thousand National Socialists marched through Amsterdam behind a horse-drawn carriage, accompanied by a marching band.
Nazi symbols were prominently displayed, and the ceremony was heavily publicized as an act of martyrdom. The event was intended to mobilize supporters, intimidate the wider population, and reinforce the propaganda image of Koot as a victim of alleged Jewish violence. In the days that followed Hendrik Koot’s death, Nazi authorities moved quickly from propaganda to direct repression.
On the orders of Hans Böhmcker, deputy to Reichskommissar Arthur Seyss-Inquart and a senior Nazi official in the Netherlands, the Amsterdam Jewish Council was imposed, placing the burden of enforcing German regulations onto the Jewish community itself. The council was made responsible for maintaining order, under constant threat of house searches and collective punishment if it failed to comply.
Soon afterward, the Jewish quarter of Amsterdam was sealed off by Nazi authorities. Streets were blocked, movement was restricted, and the area was placed under intensified police control. This action effectively marked the beginning of the Amsterdam ghetto. The measures were publicly justified by invoking the violence surrounding Koot’s death, which Nazi propaganda presented as proof that the Jewish population posed a threat to public order.
Tensions escalated further when a patrol of the German Order Police was wounded during an attack on an ice cream parlour in the Jewish quarter, a location known as a gathering place for Jewish resistance fighters. The incident provided the Nazis with the pretext they had been seeking.
On 22 and 23 February 1941, the first large-scale raids against the Jewish population were carried out. Homes were stormed, and men were dragged into the streets at gunpoint. In total, 425 Jewish men between the ages of 20 and 35 were arrested. They were deported to the Buchenwald and Mauthausen concentration camps, where many were murdered or died under brutal conditions.
The arrests sent shockwaves through Amsterdam and exposed the lethal consequences of the policies that had been unfolding since the occupation began. Public anger spread rapidly. With the support of the underground Dutch Communist Party, calls for resistance gained momentum. On 24 February 1941, strikes broke out across Amsterdam and nearby towns.
Trams stopped running, factories shut down, and workers walked out in protest against the deportations and the persecution of the Jewish population. The strike continued until 27 February, becoming the first and only mass protest in German-occupied Europe organized specifically against the deportation of Jews. Nazi authorities responded with force. Troops were deployed to crush the strike, and posters were plastered across the city invoking Koot’s death as justification for military intervention.
What had begun as a street clash was transformed into a turning point, accelerating repression, deportation, and one of the most extraordinary acts of civilian resistance during the occupation of the Netherlands. The Second World War in Europe ended on 8 May 1945. During five years of Nazi occupation, the Germans and their Dutch collaborators deported around 107,000 Jews from the Netherlands, most to Auschwitz and Sobibor in German-occupied Polland, where the overwhelming majority were murdered. The consequences of collaboration extended
beyond Hendrik Koot’s death. His widow, Elisabeth Koot–Van Groningen, benefited directly from the system he had served. She was allocated three Jewish textile shops, confiscated by the occupiers, for the maintenance of her family. After the war, she was brought before a Dutch court.
On 23 January 1947, she was tried for exploiting confiscated Jewish property and two weeks later was sentenced to two years’ imprisonment. Thanks for watching the World History Channel. Be sure to like and subscribe and click the bell notification icon so you don’t miss our next episodes. We thank you and we’ll see you next time on the channel.