When German forces began to build the Atlantic Wall, (the answer to Q5) felt it was more for propaganda than military effectiveness (he was later found to be correct). As such, (the answer to Q5) likened it to this fantasy world, made famous in "The Birds" by Aristophanes. (edited at 1:25 pm, May 29, 2019 (PDT))
Original question: When German forces began to build the Atlantic Wall, (the answer to Q4) felt it was more for propaganda than military effectiveness (he was later found to be correct). As such, (the answer to Q4) likened it to this fantasy world, made famous in "The Birds" by Aristophanes.
Cloud Cuckoo Land [or in German, Wolkenkuckucksheim]