I have found none that refer to any faith on their websites, but I will retract and restate my last post.

Guest,
I mean, they were religious so of course they believed what they were told

They were just told that German armies were sweeping into Belgium and France.
It was the truth.
No-one tells historians what to do, but they think it was the right to resist as well.
You imagine that you know more about history than the historians.
That makes you a fool.