![Conor McGregor displays the Irish flag after beating Dustin Poirier on Saturday in a featherweight fight at UFC 178. AP](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/OSIM5Z2OVPXVYMEBJAGA4MUFHA.jpg?smart=true&auth=2d7253a4cd5da89dde3232d8942dfc50e38d8a1177016a0e62cc6bbc2aaf99fc&width=400&height=225)
Conor McGregor displays the Irish flag after beating Dustin Poirier on Saturday in a featherweight fight at UFC 178. AP
Conor McGregor displays the Irish flag after beating Dustin Poirier on Saturday in a featherweight fight at UFC 178. AP
'Foggy Dew': The meaning behind UFC fighter Conor McGregor's walkout soundtrack
Based on a poem, the lament documents a harrowing period of Irish history