Here’s a great poster from WWI with the Bitish Royal Air Force looking for people.
Key to the advertisement’s recruiting – other than the allure of possibly being a pilot – is that even if you are part of the ground crew, you can NOT be transferred to the Arny or Navy without your consent.
It was key because by the time more pilots were needed for the war effort later in the war, reports about life in the trenches had filtered around – and no one wanted to be a grunt on the ground being shot at on an hourly basis while strange gases wafted about.
Couple that with the fact that the folks looking after the aeroplanes and flying them had much better living quarters.
Also, the poster ad plays on people’s morality focusing on honor and glory – two things that people thought war could bring them. Honor? Sure. Glory? You are fighting for the wrong reason.
The smart person could look at that poster and see the German pilot being dealt a death blow from the Sopwith Pup (guessing) and realize it could just as easily be him – but what the heck? All’s fair in love and war and advertising.
It’s only in the past few years that there must be truth in advertising.