... Boulogne, and • the other vital ports, there started the greatest rearguard action in the history of warfare—the British evacuation from Dunkirk. Nearly 400.000 men, drawn from all quarters of the shattered battle line, started the long trek back to the ...

... tions. ‘Villages the flooded area | The problem of a warning of im-| if, after the probationary period, have been hastily evacuated. system was satisfactory and workable Over 4,000 villagers arg homeless. danger had been considered he would be prepared ...