It is worth remembering that a significant proportion of the troops recovered from Dunkirk were French troops. So, from a purely British point of view you have to reduce the size of potential British troop losses if Operation Dynamo failed.
The shortage faced in the UK was more of materials than men, though the extra trained troops would have been very useful.
The shortage faced in the UK was more of materials than men, though the extra trained troops would have been very useful.