The article could also mention that Britain has a heavily armed presence in the six counties of north Ireland, which colluded with and armed loyalist death squads, when it wasn't locking up the native population in concentration camps during internment, shooting dead unarmed protesters in the street when Irish men and women marched through the street protesting internment. This is not a possible threat to Ireland but a threat against Ireland which already was enacted, and Britain seized six counties from Ireland.
The British empire has now turned its attention from Ireland to Russia and has been sending weapons abroad in order to kill Russians. So Russian warships sailing past Britain is natural enough.
I hope they do fire on Britain in order to not only stop the weaponry killing Russians, but to weaken Britain so the Irish can be free of Britain's military occupation.