Warning strike

A red sign on a door reads "Warnstreik!", meaning "warning strike" in German.
A sign announces a warning strike by the German trade union Ver.di at a kindergarten in Olching.

In the context of organized labor, a warning strike is a temporary, brief work stoppage in the course of the collective bargaining process.

Lasting a few hours or up to a day, it serves to signal the union's ability to mobilize through disruption of regular business, while stopping short of an indefinite strike. In some jurisdictions, a warning strike can be called by union leadership without a vote of the membership.

Warning strikes are most common in Germany, where they are known as Warnstreiks. They have been used frequently and to significant effect there. Since a 1976 ruling, the right to hold warning strikes outside the period of Friedenspflicht [de] ("peace obligation") has been protected under the Basic Law.

They have also played an important role in Poland, where they are known as strajki ostrzegawcze. Notably, the four-hour 1981 warning strike was the largest strike in the nation's history, with as many as 14 million Poles participating, making up almost the entirety of the working population. Today, warning strikes are permitted under the 1991 Trade Union Act but are limited to 2 hours in length.

Occasional warning strikes have also occurred elsewhere, such as in South Africa, Nigeria, and Israel. In the United States, the National Labor Relations Act does not permit a series of short, interrelated strikes, but one short warning strike followed by an indefinite strike is allowed.

See also

References

  1. 1 2 3 4 "Why warning strikes?". IG Metall. 2011-09-16. Retrieved 2026-09-01.
  2. 1 2 3 Grözinger, Gerd; Matiaske, Wenzel (2016-05-11). Developments in German Industrial Relations. Cambridge Scholars Publishing. p. 109. ISBN 978-1-4438-9311-4.
  3. 1 2 3 Foster, Nigel G.; Sule, Satish (2010). German Legal System and Laws. Oxford University Press. p. 595. ISBN 978-0-19-923343-4.
  4. ↑ Kuźma, Ryszard (2023-05-23). "When can a warning strike be organized?". Region Gdański NSZZ "Solidarność". Retrieved 2026-09-01.
  5. ↑ Wrede, Insa (2026-02-12). "Germany braces for more strikes in 2026". Deutsche Welle. Retrieved 2026-09-01.
  6. ↑ "Germany strikes explained: The long and the short of it". BBC. 2018-02-01. Retrieved 2026-09-01.
  7. ↑ Velden, Sjaak van der; Dribbusch, Heiner; VanDaele, Kurt (2025-10-01). Strikes around the world: Case-studies of 15 countries. Taylor & Francis. ISBN 978-1-040-79220-9.
  8. ↑ Silvia, Stephen J. (2013-11-15). Holding the Shop Together: German Industrial Relations in the Postwar Era. Cornell University Press. ISBN 978-0-8014-6965-7.
  9. ↑ Pieńkos, Jerzy (2002). Euroleksykon terminologiczny międzynarodowych stosunków gospodarczych, prawnych i politycznych: polsko-angielsko-francusko-niemiecki (in Polish). Iuris. ISBN 978-83-915425-3-8.
  10. ↑ "Bydgoszcz March" (in Polish). Archived from the original on 2008-12-11.
  11. ↑ Darnton, John (1981-03-27). "Polish Union Stages Nationwide Strikes". The New York Times. ISSN 0362-4331. Retrieved 2026-09-01.
  12. ↑ Gruber, Ruth E. (1981-03-27). "Most of Poland's 13 million workers went on strike". UPI. Retrieved 2026-09-01.
  13. ↑ Ceruti, Claire (2011). "The hidden element in the 2010 public-sector strike in South Africa". Review of African Political Economy. 38 (127). Taylor & Francis, Ltd.: 151–157. ISSN 0305-6244.
  14. ↑ "Why there's power outage in Abuja". Premium Times. 2023-09-05. ISSN 2360-7688. Retrieved 2026-09-01.
  15. ↑ "Israel's Surfeit Of Doctors Leads To Strike". BMJ: British Medical Journal. 308 (6938). BMJ: 1185–1185. 1994. ISSN 0959-8138.
  16. ↑ "Dealing with the Law". Labor Notes. 2019-10-17. Retrieved 2026-09-01.