List of British armies in the First World War
This page is a list of British army-level formations existing during the First World War.
Expeditionary Forces
- British Expeditionary Force
- * First Army
- * Second Army
- * Third Army
- * Fourth Army
- * Fifth Army
- Mediterranean Expeditionary Force
- * Dardanelles Army
- * Egyptian Expeditionary Force
- * British Salonika Army
- Mesopotamian Expeditionary Force
- British Expeditionary Force in Italy