Eagler,
Its not WWII, but I recommend "Slow Horses" as worth watching. Gary Oldman's performance as a put-out-to-pasture MI5 agent in charge of a group of misfit/screwup agents is terrific. Though it sounds like a comedy its not - its really a spy thriller. Kristin Scott Thomas is also excellent in it.
Also recommend Ted Lasso if you feel like being uplifted. Only saw one season of that, but its well-done. I think there are two or three seasons now, nit sure.