How might helicopters affect the evacuations from Dunkirk and Calais?
Short answerHelicopters could recover troops after dark from Dunkirk's beaches and Calais, including men otherwise left behind.
NotesRoyal Navy experience with night flying could support helicopter evacuations after dark. Aircraft could recover troops from the Dunkirk beaches and from Calais. Some troops who would otherwise be lost or abandoned might leave during the night.