The Green 'Erin go Bragh' flag of Ireland has been a symbol of Irish identity for centuries. The phrase Erin go Bragh (sometimes 'Erin go Braugh') translates from Gaelic as 'Ireland Forever' and is pronounced 'air-inn guh braw'. The Saint Patrick's Battalion who fought in the Mexican war of 1847 used the flag which shows the coat of arms of Ireland (the harp) with the famous phrase underneath it.