The neutral angels & the fighting Irish

I've always wondered about the "Fighting Irish". What's with the fighting? For a Catholic people, it seems contradictory. Then I heard this romantic literary tale from the late Archbishop Fulton Sheen. It's been told that during the war between Lucifer's legions and God's faithful angels, a third group of angels stayed on the sidelines - taking neither side. At the end, these neutral angels were also banished from heaven until judgment day. Though they were not condemned in hell, they were sent to Ireland. Ever since, they have inspired the people there to fight the good fight.