OK, you were doing fine 'till you said Ireland was part of the British Isles, LOL.Ireland is Ireland and Britian is that other island in the Irish sea.
Nothing to do with terriers, just politics, LOL.
Reminds me of a post on one of the native finch forums ,an English fella piped up (something along these lines ) " why do the Irish lads insist on calling their birds, native Irish finches ,when finches are british " lol ,maybe all them centuries ago st Patrick along with the snakes chased all the goldies,greenies,siskins,bullys etc etc over to Britain to be born and bred there lol.