OK, guys, I guess I can resist anything except an audience. I rewrote the Siegfried thing as a TL & posted it in the ASB section. It's a lot longer & more detailed, & it addresses several of your concerns. (Aynys' energy remarks & long-term strategy, RamscoopRaider's bomber issues, The Red's ground attack option, Mowque's blockade idea...)
(And thanks to Ariennye for retranslating my vaguely remembered high school German.)
...and LostCosmonaut, you're absolutely right. Not very practical-- just interesting to think about. What is the very best, most self-sufficient, & well-protected Antarctic colony the Nazis could possibly have come up with, & how might it have fared once discovered?
--Thegn.