I appreciate times have moved on in the UK, but Harry should remember these facts.
Im not sticking up for harry, but, Black Americans were as welcome in British Pubs as any one was untill the US high command decided it wanted to import its brand of rascism across the atlantic and placed some Pubs out of bounds to non white soldiers. Lots of british Pubs refused to take part in this.
There were running battles in the streets of some towns where british soldiers and civilians fought alongside Black GIs against rascist American soldiers trying to enforce aparthied.
what probably happened was that this was not much of a fight
F stop, "real fights" are over in seconds, the two injured Americans will have been down and out before there comrades knew what was happening. Its only those silly male posturing fights that involve lots of pushing and shoving that last minutes.
The nastiest fights Ive seen from years of working in clubs( and Ive seen certain secret soldiers scrapping in a hereford nightclub) have been over before you can figure out whats going on. Its not fair on the three guys who didnt get involved to say or imply that they let their buddies down. Its probably to their credit that they didnt just lash out at the nearest Pole in revenge, good ambassadors IMHO.