1920

The Second Silesian Uprising

In August 1920, the insurgents demanded the dissolution of the German security police. The fighting led to the creation of a Polish–German Plebiscite Police force.

AI illustration: volunteers by a brick factory gate and residents of an industrial town.
AI illustration · imagined sceneKeeping watch in town: an imagined scene of 1920A contemporary illustration inspired by the exhibition. It is not an archival photograph or an exact reconstruction of a specific place, people or event.

A new administration

The Inter-Allied Administrative and Plebiscite Commission took over the plebiscite territory in February 1920. It was chaired by French General Henri Le Rond. France, Britain and Italy participated in Allied administration, but their interests and partition proposals differed.

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Two commissariats

Wojciech Korfanty headed the Polish Plebiscite Commissariat at the Lomnitz Hotel in Bytom. Kurt Urbanek led the German commissariat in Katowice. The campaign involved newspapers, meetings and organisational work; competition extended beyond electoral argument.

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The dispute over the security police

One central dispute concerned the Sicherheitspolizei, the German security police retained in the plebiscite territory. The Polish side accused it of partiality and involvement in violence. Replacing it with a Polish–German police force became a principal aim of the August 1920 uprising.

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Violence in Katowice

On 17 August 1920 violent unrest in Katowice led to clashes with French soldiers. Andrzej Mielęcki, a doctor and Polish plebiscite activist helping the wounded, was killed by German rioters. Attacks on Polish institutions deepened the security crisis.

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The course of the fighting

The August 1920 uprising had stronger organisational support than the 1919 action. Alfons Zgrzebniok again directed operations. Insurgents took industrial areas and surrounded larger towns containing Allied garrisons or strong police units.

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The Second Uprising is conventionally dated from the night of 19–20 August to 25 August 1920. Mirosław Węcki’s detailed account also includes actions from 18 August and clashes through 28 August. Orders, the principal phase and final actions need not share the same date range.

The differing scopes are not reduced to one supposedly exact date.

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The Plebiscite Police

The Allies dissolved the Sicherheitspolizei and established a parity-based Plebiscite Police, the Abstimmungspolizei (APO). This significantly changed the conditions of the campaign. It did not settle the region’s state affiliation: the vote still lay ahead.

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Sources

  1. Ideas for the Division of Upper Silesia After the Plebiscite

    Renata Skoczek · Institute of National Remembrance · 2021-05-07

  2. II Powstanie Śląskie

    Mirosław Węcki · Instytut Pamięci Narodowej · 2025-08-19

  3. Powstania śląskie 1919–1921: exhibition leaflet

    Instytut Pamięci Narodowej · 2021

  4. Treaty of Versailles, Article 88 and Annex; editorial notes in FRUS

    Allied and Associated Powers; US Department of State editors · Office of the Historian, US Department of State · 1919 (treaty); 1947 (FRUS volume)

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