Sending fire engines is just charity, considering we Irish people consider Belfast part of Ireland and almost all the members of the Dail at that time had some involvement with Republicanism at some time in their life it is not surprising we sent fire engines to ensure the safety of our brethren, articles 2 and 3 of the constitution were in full force at that time.
Are you saying 100,000 Irish men fought in WW2? if so where did you get these figures?
De Valera, though he sent fire engines north, made not a peep of protest to the Germans over the bombing of an Irish city, and the resulting civilian deaths.
Completely untrue. De Valera made a formal protest to Berlin about the bombing, and there is reason to believe the Germans took his protest seriously.
He followed this up with a speech in Castlebar, in which he said:
"In the past, and probably in the present, too, a number of them did not see eye to eye with us politically, but they are our people – we are one and the same people – and their sorrows in the present instance are also our sorrows; and I want to say to them that any help we can give to them in the present time we will give to them whole-heartedly, believing that were the circumstances reversed they would also give us their help whole-heartedly"