- 07 Jul - Councils regarding Serbia; also on 21 July.
- 23 Jul - Ultimatum to Serbia.
- 25 Jul - Minister leaves Belgrade.
- 26 Jul - Partial mobilisation.
- 28 Jul - Declaration of war on Serbia.
- 01 Aug - General mobilisation.
- 05 Aug - Declaration of war on Russia.
- 25 Aug - Declaration of war on Japan.
Chronological events here part of The Great War:On This Day project. We need your help to expand and improve upon this content.
Source: Lord Edward Gleichen (1918–1920). Chronology of the War. Volumes I, II & III. Constable & Company, London. (Copyright expired)