Historical biography archive · Updated 2026-11-03

Hans Oster Biography and Timeline

Follow Hans Oster through 3 dated historical records for Germany.

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Hans Oster, historical timeline

A chronological timeline drawn from matching World History Database records.

3Distinct records

1 of 1Page

1938–1939Years on this page

1938

Chief of Staff

Chief of Staff · Warfare / Military

Appointed Chief of Staff of the Abwehr

1938

Chief of Staff

Chief of Staff · Warfare / World War, 2nd

Appointed Chief of Staff, Abwehr, German military intelligence

Role range: 1939-1945 – 1938-1943

1939

5 November 1939

Invasion of Netherlands, The

Colonel · Berlin · Warfare / World War, 2nd

Oster warns the Dutch military attache about an invasion

Role range: 1939-1945

Records, sources and methodology

These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.