There are many great World War II great posters that were used to inform and influence the public. These anti-prostitution posters brought some urgency to the real problem of sexual diseases srpeading among the military personnel. Some of these are pretty scary, and some seem really funny now.
From otisarchives3 on Flickr
From otisarchives1 on Flickr
It is Donald Duck!! And he's upset he doesn't have a condom…
This is an Austrailian poster for their medical corps. You can buy a pring of it at Hakes.