The few places this art appears on the web label it “Nazi propaganda” but the language is French and the style seems to suggest French anti-Nazi propaganda to me:

Hitler astride the giant penis artillery as it moves forward in conquest; a small naked woman stands in the way

Even if you click for the slightly-bigger version, the resolution isn’t good enough to read the smaller text except that I can make out the word “petit” at the end of the first line. Google tells me that the repeated “Foutre!” in the upper caption is a vulgar French word that can be translated a number of ways but which, etymologically anyway, basically means “Fuck!”

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