Gleiwitz radio attack as Polish aggression

Nazi German authorities staged the seizure and Polish-language broadcast at the Gleiwitz radio station and presented it within a broader narrative of genuine Polish aggression against German territory.

1 episode

Current understanding

The Gleiwitz incident of 31 August 1939 was a German security-service operation ordered by Reinhard Heydrich, not a Polish attack. Alfred Naujocks later stated under oath that Heydrich ordered him to simulate an attack, make the attackers appear Polish and provide practical evidence for the foreign press and German propaganda. Germany invaded Poland the following morning, but the invasion had already been planned; Gleiwitz was a manufactured pretext within the aggression narrative, not the event that caused the decision to invade.

Consequences and human impact

Gleiwitz illustrates a deliberately manufactured factual episode being fed into state justification for military aggression. A small German security-service team seized the radio station, transmitted briefly in Polish and fired shots before leaving. On 1 September Hitler publicly portrayed Germany as responding to Polish attacks on German territory. The operation supplied staged evidence for a policy already chosen rather than triggering that policy.

How the consequences followed

Hitler did not name Gleiwitz in his 1 September Reichstag speech. He made the broader claim that Polish regular soldiers had fired on German territory and that Germany was returning fire.

The Reich Security Main Office did not yet formally exist in August 1939; it was created on 27 September 1939.

Popular retellings often add details beyond what Naujocks's sworn statement directly establishes; those details are not necessary to demonstrate the staged attack and its propaganda purpose.

5–6

additional SD men Naujocks said Heydrich ordered to accompany him to Gleiwitz

3–4 minutes

approximate duration of the Polish-language broadcast in Naujocks's sworn account

1 day

from the staged Gleiwitz incident to Germany's invasion of Poland the following morning

The sequence does not imply that Gleiwitz caused the invasion; the attack on Poland had already been planned.

Quantitative figures are highlighted only when the cited evidence supports them. The scale of a related catastrophe is not automatically treated as a death toll caused solely by this belief.

Institutional episode

Nazi Germany

1939Officially endorsed

Gleiwitz was not a mistaken border report. Heydrich ordered a German security-service team to create an apparent Polish attack and explicitly linked the operation to press and propaganda needs. The incident furnished apparent evidence for an aggression narrative rather than determining the decision to invade Poland.

Institutions

Office of the Chief of the Security Police and SD under Reinhard Heydrich
Reich government

Documented consequences

Creation of fabricated evidence intended for foreign press and German propaganda
Incorporation of staged border incidents into the official narrative that Poland had attacked German territory
Public presentation of German military action as defensive retaliation rather than planned aggression
Use of a manufactured incident as one element of the propaganda justification surrounding the invasion of Poland

Institutional machinery

Naujocks stated that around 10 August 1939 Heydrich personally ordered him to simulate an attack on the Gleiwitz radio station so that the attackers would appear Polish, explaining that practical proof was needed for the foreign press and German propaganda. Naujocks went to Gleiwitz with five or six other SD men and carried out the operation on the evening of 31 August. On 1 September, as German forces invaded Poland, Hitler told the Reichstag that Polish regular soldiers had fired on German territory. German Federal Archives material identifies Gleiwitz and other border incidents as Nazi fabrications used as ostensible justification for an invasion that had already been planned.

Sources and what they establish

Affidavit of Alfred Helmut Naujocks — PS-2751Harvard Law School Library Nuremberg Trials Project
Hitler's Speech before the Reichstag — 1 September 1939Harvard Law School Library Nuremberg Trials Project
Hitler's 1 September speech publicly asserted that regular Polish soldiers had fired on German territory and presented German action as returning fire.
The German invasion of Poland in 1939German Federal Archives

Last reviewed: 25/08/2026