Leadership, recruitment and training
The Pretzsch Training School
In preparation for Operation Barbarossa, SS-Brigadeführer Bruno Streckenbach (1902–1977) was entrusted with the recruitment and training of Einsatzgruppen personnel. The principal training center was the Border Police School at Pretzsch on the Elbe, approximately 150 kilometers southwest of Berlin. Owing to the large number of recruits, many personnel were accommodated in surrounding towns. The training programme prepared the units for their forthcoming "special tasks" on the Eastern Front and included:
- Ideological indoctrination: Lectures on Nazi racial ideology, anti-Bolshevism and the so-called "Russian mentality."
- Tactical instruction: Training in security operations, anti-partisan warfare and logistical planning.
- Operational readiness: Military drills, weapons training and medical briefings on diseases likely to be encountered on the Eastern Front.
In June 1941, Reinhard Heydrich personally briefed the Einsatzgruppen commanders before the invasion of the Soviet Union. Although no complete transcript of his address survives, surviving evidence indicates that the briefing emphasized the ideological objectives of the campaign and prepared the units for the mass executions that followed in the occupied territories.
Personnel composition and the execution mandate
Who were the men of the death squads?
The Einsatzgruppen consisted of approximately 3.000 personnel. Their ranks were drawn from several Nazi security organizations, including the Sicherheitspolizei (Sipo), Sicherheitsdienst (SD) and Ordnungspolizei (Orpo) and were reinforced by selected members of the Waffen-SS.
The Heydrich Directive (July 2, 1941)
In a formal communication to the Higher SS and Police Leaders (HSSPFs), Reinhard Heydrich defined the principal categories of individuals to be targeted during security operations in the occupied Soviet territories. These included:
- Communist officials: Representatives of the Comintern, senior Communist Party officials and professional Communist politicians.
- Party cadres: National and regional Communist Party functionaries, particularly those regarded as ideological leaders or potential organizers of resistance.
- People's Commissars: Soviet political commissars and senior officials within the Soviet administration.
- Jewish targets: Jews holding positions within the Communist Party or Soviet state administration, as well as individuals accused of sabotage, resistance, or other activities deemed hostile to the Nazi occupation.
Heydrich also instructed Einsatzgruppen commanders to encourage and exploit local antisemitic sentiment wherever possible. By fostering and supporting pogroms against Jewish communities, the SS sought to intensify the violence while creating the appearance that the killings were spontaneous actions carried out by local populations.
During the first weeks of Operation Barbarossa, the Einsatzgruppen primarily targeted Jewish men of military age, Communist officials and Soviet political commissars. Within only a few months, however, the scope of the killings had expanded to encompass the systematic extermination of entire Jewish communities.
Men, women, children and the elderly were murdered without distinction, demonstrating the rapid radicalization of Nazi genocidal policy during the summer of 1941.
Who were the leaders of the Einsatzgruppen?
The commanders of the Einsatzgruppen and Einsatzkommandos were carefully selected from Reinhard Heydrich's senior SS and Security Police leadership. Unlike many of the rank-and-file personnel, these officers were highly educated, with many holding doctorates in law, economics, history, or other academic disciplines. Their education and administrative experience enabled them to organize and direct large-scale operations with remarkable efficiency.
- Ideological commitment: Many commanders were committed National Socialists who embraced Nazi racial and ideological doctrine.
- Administrative leadership: They coordinated personnel, logistics, reporting and cooperation with other SS, police and military authorities.
- Operational command: They planned and supervised mass executions while ensuring that detailed operational reports were submitted to the Reich Security Main Office (RSHA).
Collaboration and auxiliary forces
The effectiveness of the Einsatzgruppen depended heavily on the support of local collaborators and auxiliary forces. Across the Baltic states, Ukraine, Belarus and other occupied territories, the SS worked closely with auxiliary police units, local militias and other collaborators who assisted in identifying, arresting, guarding and murdering those targeted under Nazi racial and ideological policies.
This cooperation significantly increased the scale and speed of the killings. While the Einsatzgruppen planned and directed the operations, the participation of local auxiliary forces played a crucial role in implementing the "Holocaust by Bullets" across occupied Eastern Europe.
Did the Einsatzgruppen have enough manpower?
The limits of paramilitary capacity
Despite commanding an auxiliary force of approximately 10.000 police officers and 33.000 local collaborators, the Einsatzgruppen lacked the manpower to carry out the systematic extermination of Jewish communities across the vast territories of occupied Eastern Europe on their own. To achieve the regime's genocidal objectives, the Reich Security Main Office (RSHA) and senior SS leadership relied on the participation of additional Order Police (Orpo) battalions, Waffen-SS units and other auxiliary formations.
This broad network of military, police and civilian collaborators transformed the mass shootings from operations conducted by relatively small mobile units into a coordinated campaign of genocide across occupied Eastern Europe.
Key participating units and collaborators
The Einsatzgruppen did not operate in isolation. Their campaign of mass murder relied on the support and participation of numerous German military, police and auxiliary organizations, including:
- SS Brigades: Various SS formations operated behind the front lines, supporting security operations and participating in mass killings.
- The Fegelein Cavalry Brigade: Commanded by Hermann Fegelein, this SS cavalry formation conducted large-scale "pacification" operations in the Pripyat Marshes, resulting in the mass murder of thousands of civilians, particularly Jews.
- The Arājs Kommando: A Latvian auxiliary unit led by Viktors Arājs, responsible for the murder of tens of thousands of Jews and other victims in Latvia.
- Reserve Police Battalions (Ordnungspolizei): These police units played a central role in the roundup, deportation and mass shooting of Jewish communities and other civilians throughout occupied Eastern Europe.
- SS Sturmbrigade Dirlewanger: Commanded by Oskar Dirlewanger, a convicted sex offender, this notorious penal unit was composed largely of convicted criminals and became infamous for its exceptional brutality during anti-partisan operations and the mass murder of civilians. Its deployment illustrates how the Nazi regime exploited convicted criminals alongside ideologically committed SS personnel in the pursuit of genocide.
- The 5th SS Panzer Division Wiking: Although primarily a Waffen-SS combat formation, elements of the division participated in security operations and were implicated in atrocities against Jewish civilians and other targeted groups during the campaign in the Soviet Union.
- The Wehrmacht: Although not formally part of the Einsatzgruppen, elements of the German Army secured operational areas, provided logistical support, assisted in the roundup of civilians and in some instances directly participated in mass shootings.
Movement of the Einsatzgruppen (1941-1942)
Click on the map to enlarge
The map above illustrates the movement of the Einsatzgruppen A, B, C and D from June 1941 to November 1942. These mobile units tracked alongside the advancing German Wehrmacht into the Soviet Union under Operation Barbarossa.
Psychological impact of mass executions
The mental toll on perpetrators
While the victims endured unimaginable suffering and death, the members of the Einsatzgruppen also faced the psychological consequences of carrying out thousands of face-to-face executions. Unlike the later extermination camps, where killing became increasingly mechanized, the Holocaust by bullets required perpetrators to shoot men, women and children at close range, often over prolonged periods.
Reports from the Eastern Front described cases of battle fatigue, emotional strain and widespread alcoholism among some members of the Einsatzgruppen and attached police units. However, historians also note that many perpetrators continued their duties without significant hesitation, motivated by ideological conviction, obedience, peer pressure, career ambitions or a gradual desensitization to violence. Psychological distress rarely resulted in refusal to participate.
On 1 August 1941, Heinrich Himmler witnessed a mass execution near Minsk. During the shooting, Himmler reportedly became physically ill after observing the brutal killings at close range. The incident reinforced his concern that the direct involvement of SS personnel in mass shootings could negatively affect the efficiency and morale of the execution squads.
The shift toward industrialized killing
Following his visit, Himmler instructed Arthur Nebe, commander of Einsatzgruppe B, to investigate alternative methods of mass murder that would reduce the psychological burden on the perpetrators while increasing efficiency. Experiments with explosives and carbon monoxide eventually led to the development of mobile gas vans, in which victims were killed by engine exhaust during transport.
The search for more systematic methods of mass murder culminated in the establishment of permanent extermination camps. On 13 October 1941, Himmler instructed Odilo Globočnik, SS and Police Leader in the Lublin District, to begin preparations for the construction of Bełżec, the first extermination camp established as part of Operation Reinhard. Together with Sobibór and Treblinka, these camps marked the transition from the mass shootings carried out by the Einsatzgruppen to the industrialized extermination of Europe's Jews during the Final Solution.
Although the extermination camps became the principal means of mass murder, the Einsatzgruppen and related SS and police formations continued to carry out mass executions throughout the remainder of the war. They remained active in anti-partisan operations, reprisals against civilians and the murder of Jews who had survived earlier massacres or were discovered in hiding, demonstrating that the "Holocaust by Bullets" continued alongside the operation of the extermination camps.