You've got that in a bit of a twist, Dick. He visited the German Legation in Dublin after Hitler's death- and he was the only head of state in the world to officially send condolences. It would not have been possible to vuisit Germany, which by then was almost entirely controlled by the Allies- and Berlin by the Russians.

De Valera almost certainly had no sympathy whatsoever with Nazi or German war aims, but was determined to tread the path of total neutrality he saw as necessary. I think he was mistaken, as did the thousands of Irish people who joined the British army or worked in our war industries. His cynical use of Catholic nationalism to further his own ends is a matter of record. See disgraceful shenanigins over the Mother and Child Act.