Agnes might know what she was doing heading into this marriage, but he didn’t. He had no clue; marriage wasn’t part of the curriculum at West Point. … - Harry Turtledove

There really was a German resistance movement after V-E Day. It was never very effective; it got off to a very late start, as the Nazis took much longer than they might have to realize they weren't going to win the straight-up war. And it was hamstrung because the Wehrmacht, the SS, the Hitler Youth, the Luftwaffe, and the Nazi Party all tried to take charge of it- which often meant, for all practical purposes, no one took charge of it. By 1947, it had mostly petered out.

Rolf Halbritter coughed from the dust the retreating convoy kicked up. He shook his head in wonder not far from awe. The Amis were really and truly going- no, really and truly gone. Which meant... He had a badge pinned on the underside of his collar, where it didn't show. Now he could wear it openly again. It was round, with a red outer ring that carried a legend in bronze letters: NATIONALSOZIALISTISCHE DEUTSCHE ARBEITERPARTEI. The white inner circle held a black swastika. Every Party member had one just like it. Pretty soon, they'd all be showing it, too.

Yes, I know I haven’t told you anything. No offense, Sis, but you like running people’s lives so much, you don’t like it when they try and run their own.