So on his official visit to the UK the Pope apparently said:

“we can recall how Britain and her leaders stood against a Nazi tyranny that wished to eradicate God from society […] As we reflect on the sobering lessons of the atheist extremism of the twentieth century“

Now compare that with some quotes from Hitler (who knew a thing or two about Nazi Germany) on atheism:

“We were convinced that the people needs and requires this faith. We have therefore undertaken the fight against the atheistic movement, and that not merely with a few theoretical declarations: we have stamped it out.“

“ We have put an end to denial of God and abuse of religion.“

“ National Socialism neither opposes the Church nor is it anti-religious, but on the contrary, it stands on the ground of a real Christianity.“

Finally this classic from the lead up to the Nazi-Vatican Concordat of 1933:

“Secular schools can never be tolerated because such schools have no religious instruction, and a general moral instruction without a religious foundation is built on air; consequently, all character training and religion must be derived from faith.“

Doesn’t sound very atheistic to me..