Expeditionary fleet or expeditionary force may refer to:
- Koprulu Expeditionary Force, a protoss formation active at the beginning of the Great War.
- Koronis' expeditionary force, a protoss formation active in the interim between the Great War and the Brood War.
- UED Expeditionary Fleet, a United Earth Directorate formation sent to invade the Koprulu Sector during the Brood War.
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