people went from Ireland to Spain to fight on both sides Yes, nowadays people like Christy Moore and Brian Moore (of Belfast) sing songs like Viva la Quincea Brigada. Joe Mulheron, proprietor of Sandinos Bar in Derry, has rewritten that Johnny Lovely Johnny to make it relate to the Spanish civil war rather than much earlier battles.I think singing these songs at Irish pubs and folk clubs is quite a recent phenomena. You can find written and filmed accounts of Irish participation in Spanish Civil War, for instance Bob Doyle's autobiography.
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