British Expeditionary Force (BEF) may refer to:
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British Expeditionary Force (World War I), the British field force sent to France in World War I
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British Expeditionary Force (World War II)
The British Expeditionary Force (BEF) was the name of the contingent of the British Army sent to France in 1939 after Britain and France declared war on Nazi Germany on 3 September, beginning the Second World War. The BEF existed from 2 Sept ...
, the British field force sent to France in World War II
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