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NotesHistory (2028+) HLTopic 13.9Europe and WWII — the Holocaust and responses
Back to History (2028+) HL Topics
13.9.34 min read

Europe and WWII — the Holocaust and responses (History (2028+) HL)

IB History (first exams 2028) • Unit 13

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Contents

  • Why did it happen? Ideology, invasion, and decision
  • Whose hands? Nazi leaders and collaboration
  • Responses: resistance, rescue, and the world's reaction

The Holocaust was the Nazi state's murder of around six million Jews, alongside the mass killing of Roma, disabled people, Soviet POWs, and other groups the regime called racially inferior. It did not appear from nowhere in 1941. It grew out of ideas Hitler had held since the 1920s, then escalated sharply once war gave the Nazis the opportunity and the cover to act on them.

Cause and consequence: three layers, not one moment: Historians usually explain the Holocaust as long-term ideology meeting short-term wartime opportunity. Ideology alone (1920s–30s) produced discrimination and emigration pressure, not mass murder. It was the invasions of Poland (1939) and the USSR (1941) that created the conditions — millions of Jews under Nazi control, a brutal war of annihilation already underway — in which killing on an industrial scale became possible.
  • Long-term ideology — Nazi antisemitism drew on centuries-old European prejudice, but Hitler fused it with pseudo-scientific race theory: Jews were blamed for Germany's WWI defeat and economic collapse, and portrayed as a biological threat to the 'Aryan' Volksgemeinschaft.
  • 1933–39 escalation — Nazi policy moved step by step: boycotts (1933), the Nuremberg Laws stripping Jews of citizenship (1935), Kristallnacht violence (November 1938), then forced emigration. None of this was mass murder yet — it was exclusion and pressure to leave.
  • Invasion of Poland (September 1939) — brought about 2 million Jews under Nazi rule and began brutal occupation policies: ghettos, forced labour, and mass shootings of Polish elites, though not yet systematic extermination.
  • Invasion of the USSR (June 1941, Operation Barbarossa) — the turning point. Hitler framed this as a war of racial and ideological annihilation against 'Judeo-Bolshevism', and it is here that mass shooting of entire Jewish communities began on a huge scale.

Military and political factors were tightly linked. The Einsatzgruppen — mobile SS killing squads — followed the German army into the USSR from June 1941, rounding up and shooting Jewish men, then increasingly women and children, in mass graves. At Babyn Yar near Kyiv, over 33,000 Jews were shot in two days in September 1941. Historians estimate the Einsatzgruppen killed over 1.5 million people, mostly by shooting — this was genocide before the death camps existed.

Political decision: the Wannsee Conference (20 January 1942): By late 1941, shooting alone was slow, and unsettled some German units psychologically. At Wannsee, senior Nazi and government officials (led by Reinhard Heydrich) coordinated the machinery of the 'Final Solution' — deporting Jews from across occupied Europe to purpose-built death camps in occupied Poland (Auschwitz-Birkenau, Treblinka, Sobibor, Belzec, Chelmno, Majdanek) for mass killing by gas. Wannsee did not invent the decision to murder — killing was already underway — but it systematised and bureaucratised it across the whole continent.

Intentionalist view

  • Hitler always intended genocide from the 1920s
  • The Holocaust was the planned end-point of Nazi ideology
  • Wannsee simply formalised a long-held goal

Functionalist / structuralist view

  • There was no single master plan from the start
  • Genocide 'evolved' from radicalising wartime decisions, local initiative, and bureaucratic momentum
  • Wannsee reflects officials scrambling to coordinate policy that was already spiralling

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A Paper 3 essay on 'reasons' must go beyond Hitler. The Holocaust required thousands of decision-makers and hundreds of thousands of participants — which raises one of the biggest debates in this topic: how much responsibility sits with Nazi leadership, and how much with ordinary people and occupied societies who collaborated?

1

Hitler

Set the ideological direction and gave general authorisation, though he left few written orders — his role is central but debated in detail.

2

Himmler

Head of the SS; built and ran the camp system and the Einsatzgruppen; the chief administrator of the genocide on the ground.

3

Heydrich

Chaired Wannsee and directed the RSHA (security police); assassinated by Czech resistance in 1942, showing resistance had some effect on individual perpetrators.

4

Eichmann

Organised the logistics of deportation — trains, timetables, quotas — showing how ordinary bureaucratic skill enabled mass murder.

Hitler set the goal, Himmler built the machine, Heydrich coordinated it, Eichmann ran the trains.

Collaboration happened at every level. Some governments actively assisted: the French Vichy regime rounded up Jews for deportation (e.g. the Vel' d'Hiv roundup, July 1942), and local police forces in Poland, Ukraine, Lithuania, and elsewhere helped identify, guard, or shoot Jewish victims. In some regions, local militias carried out pogroms with little direct German involvement, such as the Jedwabne massacre in Poland (1941).

  • State collaboration — Vichy France, and puppet regimes in Croatia (the Ustaše) and Slovakia, passed their own antisemitic laws and organised deportations.
  • Institutional collaboration — railway workers ran the trains, civil servants processed paperwork, businesses profited from confiscated property and slave labour.
  • Individual collaboration — informers reported hidden Jews; some civilians looted abandoned homes or joined local killing actions.
  • Bystanders — the vast majority of Europeans neither collaborated nor resisted; fear, propaganda, self-interest, and the sheer scale of the killing made most people look away.
Debate to use in an essay: Some historians stress top-down Nazi control (the genocide was directed from Berlin). Others stress that without willing collaborators across occupied Europe — police, clerks, neighbours — the Holocaust could not have happened at this scale. A strong essay argues both mattered: Nazi leadership provided the machinery and ideology, but local collaboration provided the reach into every town and village.

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Response to the Holocaust ranged from individual acts of defiance to organised uprisings, and from silence to Allied trials after the war. A good essay weighs how much these responses could realistically achieve against Nazi power.

Type of responseExampleWhat it shows
Individual resistanceJews hiding, forging papers, or smuggling food/messages in ghettosSurvival itself was an act of defiance under constant threat of death
Armed uprisingWarsaw Ghetto Uprising (April–May 1943)Even with almost no weapons, resistance fighters held off German troops for nearly a month
Rescue networksIndividuals like Oskar Schindler and Irena Sendler; the Danish rescue of Jews to Sweden (1943)Rescue was possible but rare, and depended heavily on local conditions and courage
Partisan resistanceJewish partisan units in Belarus/Poland forests (e.g. the Bielski partisans)Armed resistance outside ghettos combined survival with active fighting
International responseAllied governments received reports of mass killing from 1942 but gave it low priorityRescue was not made a war aim; bombing Auschwitz's rail lines was debated but never ordered
Legal responseNuremberg Trials (1945–46)First time political and military leaders were tried for 'crimes against humanity'

The Warsaw Ghetto Uprising is the clearest example of collective armed resistance: in January and April 1943, Jewish fighters (the ZOB) used smuggled weapons against deportations, holding out for almost a month before the ghetto was destroyed. Elsewhere, solidarity between groups also mattered — some non-Jewish neighbours hid Jewish families at huge personal risk, while others turned people in for reward.

International response was slow and limited: Allied governments knew about mass killing from 1942 (via the Riegner Telegram and Polish resistance reports) but treated defeating Germany militarily, not rescue, as the priority. The 1943 Bermuda Conference on refugees achieved almost nothing concrete. This raises a real debate: could the Allies have done more, or was total military victory genuinely the fastest way to stop the killing?
Legal response: the Nuremberg Trials (1945–46): 22 senior Nazis were tried by the Allies at Nuremberg for crimes against peace, war crimes, and the new charge of crimes against humanity. 12 were sentenced to death (including Göring, who avoided execution by suicide). Nuremberg mattered enormously — it established that following orders was not a legal defence — but it tried only a small number of top leaders, leaving thousands of collaborators and lower-level perpetrators unpunished for decades, or never.

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