Where is the evidence that Ireland, as part of the UK, supported the Kaiser in WW1, or that Eire, more than 70000 of whose citizens fought in our armed forces and merchant marine, supported Hitler in WW2 ? Perhaps there was an ambivalence, driven by their position as a neutral country with a poor recent history regarding the UK, but what assistance are they supposed to have given to Germany, that measures against the covert aid they provided to us in the form of permitting our aircraft to traverse Irish airspace and supplying weather reports to the RAF and RN.
( Also, throughout WW2 Eire was still a member of the British Commonwealth ).