[NeoCaveman]

Btw, would it have been wrong for the Pope to have called for the execution of Adolf Hitler in 1940?

Yes.

But only because the Vatican would then have been destroyed by 1941.

[F16Fighter]

"But only because the Vatican would then have been destroyed by 1941."

Sheer conjecture.

Remember -- the Italians were 95% Catholic, as were many Germans and other Europeans.