That same day, May 21, a detachment of the British Expeditionary Force under Major-General Harold Edward Franklyn had already attempted to at least delay the German offensive and, perhaps, to cut the leading edge of the German army off.
Samme dag havde en styrke fra British Expeditionary Force under generalmajor Harold Edward Franklyn allerede forsøgt i det mindste at forhale den tyske offensiv og måske at afskære de forreste enheder.