I have seen a fair few of similar theme posters in both WW1 & WW2. At least this one has a nifty catchphrase. How much did your average Joe Bloggs know about anything remotely interesting to the enemy?
The Canadians had alot of posters recruiting people to help out, I found very few however asking for front line soldiers to be recruited. They were generally like the one above, asking for workers to cut wood, send eggs to Europe, save war bonds etc. How many Canadian soldiers participated in the great war?