- 21 Jul - News of preparation for mobilisation.
- 29 Jul - "Infamous Offer" to Great Britain.
- 31 Jul - "State of War" proclaimed.
- 31 Jul - Ultimatum to Russia and France.
- 01 Aug - General mobilisation announced.
- 01 Aug - Declaration of war on Russia.
- 02 Aug - Ultimatum to Belgium.
- 03 Aug - Declaration of war on France.
- 04 Aug - Declaration of war on Belgium.
This chronological event forms part of our "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)