I think you will find that a few Battle of Britain games have been played recently - like the year when Celtic reached the UeFA Cup Final, knocking out two English clubs on their way.
I was particularly pleased that United won - I hate Man Ure but I hate Celtic more. It pleases me to think of the residents of West Belfast being miserable tonight, though having said that, most of them support United anyway.
Technically it was when Derry City gave Scottish Cup runners up Gretna a good thrashing last month. Derry City being UK based despite being League of Ireland.
When Derry beat Gretna 5-1 in the first leg I originally thought "well done". Then their Southern manager came on the telly with his political agenda - "it's the fault of the British Government that the City of Derry does not have a decent soccer stadium!"