- 15 Aug - Ultimatum to Germany.
- 23 Aug - Declaration of war on Germany.
- 07 Oct - Occupation of Marshall Islands.
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)