On September 21, 1939, less than three weeks after Germany invaded Poland, a typed directive left the Berlin office of Reinhard Heydrich. It did not describe a single raid or battlefield operation. Instead, it translated occupation into procedure: where Jewish people were to be moved, which cities would receive them, how councils would be formed, and what records the German security apparatus expected.
The document—often called Heydrich’s “Schnellbrief,” or express letter—went to the chiefs of the Einsatzgruppen operating behind the German armies in occupied Poland. Its bureaucratic language matters precisely because of what it concealed. Forced concentration, dispossession and control were being organized as administrative tasks. The letter did not yet set out the later program of systematic mass murder, but it was a decisive early step in the Nazi regime’s construction of ghettos and in the destruction of Jewish life in Poland.
Poland under invasion
Germany attacked Poland on September 1, 1939. The Soviet Union invaded from the east on September 17 under the secret territorial arrangements attached to the German–Soviet pact. By the time Heydrich issued his directive, Polish defenses were collapsing and millions of civilians were caught between two occupying powers. German military units were followed by SS and police formations whose assignments included suppressing resistance, targeting elites and imposing racial policy.
Poland was home to Europe’s largest Jewish population, roughly three million people. Its communities ranged from major urban centers such as Warsaw, Łódź and Kraków to hundreds of small towns. Nazi ideology treated that entire varied population as a racial enemy. Persecution in Germany before the war—citizenship laws, economic exclusion, forced emigration and organized violence—now met the radically different circumstances of conquest. Occupation gave the regime control over far more people and space, while war weakened ordinary legal restraints.
Heydrich headed the Security Police and Security Service; days later these bodies would be consolidated within the Reich Security Main Office. His September 21 letter was directed to the mobile security commanders already on Polish territory. The surviving text is therefore both a policy document and a window into how the occupation’s violence was coordinated.
The directive’s two horizons
Heydrich distinguished between an unspecified “final goal” and the immediate measures required to prepare for it. Historians must read that wording carefully. In September 1939, it did not yet carry the fully developed operational meaning that “Final Solution” acquired during the genocide. The letter nevertheless makes clear that the Nazi leadership expected a larger policy to follow and wanted local actions to serve it.
The immediate program called for Jewish people in rural areas and smaller communities to be concentrated in larger towns, especially places on railway lines or near junctions. This was not neutral resettlement. It meant expulsion from homes, loss of property, disruption of livelihoods and forced movement under an occupying power. The emphasis on transport links made surveillance and future removals easier.
The directive also ordered a detailed census and demanded information about Jewish populations, trades and property. Knowledge was being turned into a weapon of administration. Names, addresses, occupations and assets allowed the security police and civil authorities to identify people, extract resources and control movement.
Jewish councils under coercion
Each Jewish community was to have a council of elders, later widely known by the German term Judenrat. The councils were made responsible for carrying out German orders and were required to provide a formal guarantee of compliance. Their members did not possess independent authority. They operated under threat, forced to communicate demands imposed by an increasingly violent occupier.
That structure created a cruel mechanism. German officials could issue orders through recognizable community representatives while shifting the practical burden of registration, labor assignments, food distribution and later deportation onto Jewish institutions. Council members faced choices in which every available option could harm people in their care. Their experiences varied greatly by place and period, and later judgments cannot erase the coercive conditions in which they acted.
The September 21 document did not establish every ghetto by itself, nor were ghettos created everywhere at once. Local German authorities improvised, competed and moved at different speeds. Piotrków Trybunalski became the site of the first ghetto in occupied Poland in October 1939. Łódź was sealed in 1940; Warsaw’s ghetto was established that autumn and closed in November. Across occupied Eastern Europe, ghettos differed in duration, form and degree of isolation. The directive supplied a common administrative direction: concentration first, under police supervision, within a system that could escalate.
From concentration to destruction
Ghettos became sites of deliberate deprivation. Overcrowding, hunger, disease, forced labor and arbitrary violence killed large numbers even before the major deportations to killing centers. German authorities seized homes and businesses and restricted food supplies. Smuggling and mutual aid kept many people alive, while schools, archives, religious practice and cultural work continued under extraordinary pressure.
After Germany invaded the Soviet Union in June 1941, Einsatzgruppen and other German units carried out mass shootings on an enormous scale. In 1942, deportations from ghettos to extermination camps accelerated under Operation Reinhard and related programs. The administrative habits visible in the 1939 directive—classification, forced assembly, rail planning, confiscation and delegated recordkeeping—were repurposed for genocide.
Continuity does not mean inevitability. Nazi policy radicalized through decisions made over time in war. But the September 21 letter shows that persecution was being systematized at the very beginning of the occupation. The machinery of the Holocaust depended not only on ideological orders from the top but also on offices, forms, maps, transport schedules and local officials.
Reading a perpetrator document
The directive survives because the regime recorded its own work. Such records must be approached with caution. Perpetrator language minimized suffering and described coercion as logistics. Terms such as “concentration” and “resettlement” can sound abstract unless restored to their human meaning: families expelled, property taken, movement controlled and communities forced into spaces chosen by their persecutors.
For that reason, the document is most revealing when read alongside Jewish testimony, diaries, underground archives and the physical history of individual ghettos. The Germans’ paperwork explains intention and structure; victims’ records reveal what those orders did to daily life. Neither can replace the other.
September 21, 1939 marks no single visible rupture comparable to an invasion or uprising. Its significance lies in the conversion of antisemitic ideology into repeatable procedures. A few pages of instructions helped define how occupation authorities would isolate and control millions of people. The violence began before the gates and walls: in the decision to treat human beings as a population to be concentrated, counted and disposed of.
Why it matters
The history of the Holocaust is sometimes compressed into its killing centers. Heydrich’s directive forces a longer view. Genocide was preceded and enabled by exclusion, registration, theft, forced movement and the destruction of civic belonging. Administrative steps that appeared provisional created conditions for later catastrophe.
It also demonstrates why historical language must remain precise. The September 1939 order was a precursor to ghettoization and later mass murder, not a complete blueprint for every phase of the Holocaust. Precision does not lessen responsibility; it reveals how policy developed and how many institutions became involved.
Explore the complete Today in History: September 21 edition, browse more stories from World War II, and continue with Germany’s invasion of Poland, the Soviet invasion from the east, and the deportation of Hamburg Jews to Minsk.
Sources and method. This article is based chiefly on the translated primary document preserved by Yad Vashem and institutional overviews from the United States Holocaust Memorial Museum. Wording about the “final goal” is kept in its September 1939 context; later developments are described separately. Scene-setting is limited to documented institutional and geographic facts.
Editorial credit: Discover Today in History editorial team. Historical research and fact-checking completed for the September 21 edition.
