Brilliant; world peace would probably break out if these countries weaved these lines into their national anthems. (Title tweak suggestion: What These Countries Haven't Said But Damn Well Should)
Our relationship with our neighbour, the UK are unproblemativally doesn't make sense grammatically or at all - it's Northern Ireland that has had some troubles and that is a different country to Ireland. Northern Ireland is PART of the UK and is not our neighbour! Or at least part of GB. You can't refer to 'Northern Ireland' as 'Ireland'.
The Irish (Rep. of Ireland) don‘t like the British mainly due to British suppression in the past, which eventually led to the Troubles. Their relations have never been unproblematically, I mean Michael Higgins was the first Irish president to visit the U.K. and that was four years ago! It‘s obvious that N. Ireland is part of the U.K. but the Republic of Ireland and the U.K. have special, sometimes problematic relations.