“The Führer must emphasise once again that for Poles there can be only one master, and that is the German; two masters side by side are not possible … therefore all representatives of the Polish intelligentsia must be killed. This sounds harsh, but such is the law of life.”
– Martin Bormann, 1940
From the earliest days of occupation, Nazi Germany launched a systematic campaign to eliminate Poland’s intellectual elite. Two successive operations – Intelligenzaktion and AB-Aktion – sought to decapitate Polish society by targeting academics, teachers, priests, professionals, civic leaders, and anyone suspected of wielding influence.
Join us as we explore this concerted, murderous attack on Poland’s intellectuals. And if you would like to visit WW2 sites in Poland with the company of expert historian guides, please explore our WW2 Day Tours in Poland and Multi-Day Guided WW2 Tours.
Motivation for Destroying the Polish Nation’s Intellectual Elite
The Nazi leadership understood that military occupation alone would not secure control of Poland. They believed Poland’s intelligentsia – those with education, moral authority, and strong community roles – could spark resistance or sustain national identity. To forestall that, the Nazis drew up target lists ahead of the invasion, such as the Sonderfahndungsbuch Polen, naming persons to be arrested or executed.
These lists included teachers, lawyers, doctors, priests, veterans, journalists, and local officials. Across the Reich security apparatus – Einsatzgruppen, Gestapo, SD – they viewed this as a preventive strike: remove the leaders, disorient the masses.
In annexed territories, Intelligenzaktion was an early tool of Germanization. In occupied General Government zones, AB-Aktion followed, expanding the purge into areas under civilian occupation rule.
Intelligenzaktion: Massacres in the Newly Annexed Lands
Intelligenzaktion unfolded primarily in the territories Germany officially annexed after September 1939: Pomerania, Greater Poland, Silesia, the so-called Polish Corridor, and parts of Mazovia.
- Nazi sources and historians estimate that across Intelligenzaktion operations, up to 100,000 Poles were killed, of whom about 61,000 matched the intelligentsia lists.
- In the Pomeranian Voivodeship, one regional campaign – Intelligenzaktion Pommern – alone saw roughly 23,000 victims. Gauleiter Albert Forster encouraged local ethnic Germans to participate in pogroms and violence against Poles, people who were neighbours, coworkers, and acquaintances just weeks before. Forster urged crowds of Germans to “Eliminate the lice-ridden Poles, starting with those in the cradle… in your hands I give the fate of the Poles, you can do with them what you want”. The crowds, in turn, chanted “Kill the Polish dogs!” and “Death to the Poles”.
- More broadly, the “Pomeranian crime” of 1939 is sometimes estimated at approximately 30,000 total victims. This total combines intelligentsia, psychiatric patients, farmers, and Jews killed across more than 400 sites.
Piaśnica and the Valley of Death
Two of the most infamous execution zones were the Piaśnica forests and the Valley of Death (Fordon, near Bydgoszcz).
- In the Valley of Death, Nazi forces murdered between 1,200 and 1,400 Poles and Jews in October–November 1939.
- At Piaśnica, mass graves stretch across dozens of execution sites. Local Selbstschutz militias (ethnic German paramilitaries) joined SS and Gestapo units in rounding up victims, often dragging them from nearby towns or prisons to woodland sites.
In some areas, executions were staged publicly to terrorise bystanders. In Bydgoszcz, bodies were left for hours in market squares as a warning. (In recent years, discussions of Polish collaboration with their Nazi occupiers have been an area of immense controversy, even leading to considerable political fallouts. But any discussion of instances of collaboration should be considered within its historical context: citizens were subjected to a uniquely brutal form of oppression under the Nazi occupation. Bloody murder, ethnically-motivated cruelty, and wanton violence were now an everyday part of life. Poland did not collaborate with the Nazi’s, but unfortunately, some individuals did.)
Targeting the Academic Heart: Sonderaktion Krakau
While mass killings raged in the countryside, Nazi planners struck at academic institutions. On 6 November 1939, the Gestapo arrested over 180 professors and staff from Kraków’s universities (notably the Jagiellonian University) under the operation later dubbed Sonderaktion Krakau, deporting them to Sachsenhausen and Dachau.
Although some were released months later, due in part to protests from the Vatican and foreign governments, the damage had been done: Poland’s academic community had been humiliated, disrupted, and placed firmly under threat.
AB-Aktion: The Purge Moves Eastward (Spring–Summer 1940)
After the sweeping violence of Intelligenzaktion, Nazi authorities turned their campaign eastward into the General Government under a new name: Ausserordentliche Befriedungsaktion, or AB-Aktion (“Extraordinary Pacification”).
- The AB-Aktion operated from approximately March to September 1940.
- Over 30,000 Polish citizens were arrested in waves across central Poland.
- Of those arrested, around 7,000 were executed in secret forest massacres under the guise of retribution and anti-resistance measures.
While Intelligenzaktion was tied to newly annexed land, AB-Aktion brought the purge into territories under direct Nazi occupation, signalling that no region of Poland was safe from elite decapitation.
A grim symbol of AB-Aktion is Palmiry, northwest of Warsaw. From 1939 into mid-1940, nightly transports from Warsaw prisons emptied into woodland execution sites. Mass graves there now hold thousands of victims – politicians, writers, athletes, priests, and other community leaders.
Victims and Methods
Both Intelligenzaktion and AB-Aktion focused on Poland’s “leadership class.” Priests, teachers, lawyers, judges, politicians, doctors, journalists, and artists were singled out. Nazi policy makers assumed that by killing or deporting these figures, they could leave the wider population directionless and easier to dominate.
The methods were brutally consistent. Victims were often arrested in sweeps, sometimes on the basis of pre-war lists, sometimes through denunciations by neighbours. Prisoners endured interrogation and beatings in Gestapo cells before being placed on night transports.
Executions took place in forests, sandpits, or fields chosen for their isolation. SS men, Gestapo officers, police battalions, and Selbstschutz auxiliaries carried out the shootings. Graves were dug in advance. Many victims were told they were being transferred, marched into clearings, and killed in groups of 20–50. In places like Palmiry, secrecy was paramount; guards ringed the forest, trucks covered with canvas muffled the sound of shots.
Why These Campaigns Mattered
These operations were not isolated atrocities. They were deliberate steps in the Germanization of Poland. By wiping out community leaders, the Nazis cleared the way for colonisation policies under Generalplan Ost. Polish towns were stripped of their elites, property confiscated, and German settlers moved in.
The campaigns also reveal the continuum of Nazi terror. Intelligenzaktion and AB-Aktion prefigured the larger genocidal programs that followed. By mid-1940, the machinery of mass arrests, deportations, and shootings was already in place – later applied on an even greater scale against Jews, Roma, and other targeted groups.
Historians often describe these campaigns as the first stage of the Holocaust in occupied Poland. They demonstrated the regime’s readiness to annihilate entire social groups and normalised mass murder as a political tool.
Aftermath and Justice
When the tide of war turned, evidence of these crimes could not be entirely erased. Mass graves at Palmiry and Piaśnica were exhumed after the war, revealing thousands of bodies. The sites became symbols of Polish martyrdom.
At the Nuremberg Trials, AB-Aktion was cited as evidence of Nazi crimes against humanity. Some perpetrators were tried in Poland and Germany, but many lower-level killers, especially in the Selbstschutz, escaped justice.
The toll was staggering: tens of thousands dead, the backbone of Polish society deliberately destroyed. Whole professions were thinned out, including nearly half of all Catholic priests in annexed areas, thousands of teachers, dozens of politicians, and entire university faculties.
Memory and Legacy
Today, these events are commemorated at memorials and museums across Poland:
- Palmiry National Memorial and Museum preserves the forest graves outside Warsaw, with displays of recovered artefacts and names of the murdered.
- Piaśnica has become a site of remembrance for the tens of thousands executed there.
- Stutthof Museum near Gdańsk documents the camp’s early role in imprisoning Polish elites.
For visitors, these places are solemn reminders of what it meant to try to erase a nation by erasing its leaders. Yet, they also show the resilience of memory: despite Nazi efforts, Poland’s cultural identity survived, and the victims are remembered as symbols of resistance. When we take time to consider the Nazis’ efforts at erasing a nation’s artistic and intellectual life, we should be all the more determined to study history and do our part in keeping the memory of victims alive.
The story of Intelligenzaktion and AB-Aktion is not as widely known as later chapters of the Holocaust, yet it was a crucial opening move in Nazi occupation policy. By decapitating Poland’s intelligentsia, Germany hoped to cripple the nation.
The forests of Palmiry, Piaśnica, and countless other sites bear witness to this intent. These campaigns remind us that war is not only fought on battlefields, but also in classrooms, churches, and city halls, where the first targets were the teachers, priests, writers, and leaders who gave a community its voice.
Join us on a WW2 in Poland and visit the country’s key wartime locations. If you have a particular area of interest or specific sites that you would like to visit, we can craft a Custom World War II Tour itinerary for you. If you have any questions, please get in touch.
