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 Attachment to the First Canadian Army 

In the Normandy section it says: ""The unit was attached to the First Canadian Army. This may have been done to help in communication, as the vast majority of Poles did not speak English when they arrived in UK from 1940 onwards.""

So does this mean that: 1) they wanted the Poles subordinated to an English-speaking unit for command and control purposes, rather than operating independently, or that 2) there were sufficient numbers of Polish-language speakers in the Canadian Army to act as translators?

There's no reference linked to this assertion.

192.0.158.233  "