| South African Overseas Expeditionary Force | |
|---|---|
 Cap badge of the 1st SA Infantry Brigade | |
| Active | 1915–1919 |
| Disbanded | 1919 |
| Country |  Union of South Africa |
| Allegiance |  United Kingdom of Great Britain and Ireland |
| Branch | Army |
| Type | Infantry |
| Size | 250,000+ |
| Engagements | Egypt campaign (1916) Western Front campaign (1916–1918) German East Africa campaign (1916–1918) Palestine campaign (1917–1918) |
| Battle honours | Awarded to the 1915 Cape Corps in 1973:
|
| Commanders | |
| Notable commanders | Lt-Genl Jan Smuts Lt-Genl Sir Jacob van Deventer Maj-Genl Sir Henry Timson Lukin |
The South African Overseas Expeditionary Force (SAOEF) was a volunteer military organisation in World War I.
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