Today, the islands of Great Britain and Ireland contain two sovereign states: Ireland (alternatively described as the Republic of Ireland) and the United Kingdom of Great Britain and Northern Ireland.

Northern Ireland is part of the U.K., but the Republic of Ireland is not; and the British Isles is the collective group of over 6,000 islands.

The Republic of Ireland–United Kingdom border, sometimes referred to as the Irish border or British–Irish border, runs for 499 km (310 mi) [1] [2] from Lough Foyle in the north-west of Ireland to Carlingford Lough in the north-east, separating the Republic of Ireland from Northern Ireland.

The Republic of Ireland – United Kingdom border is the border that separates the constituent British nation of Northern Ireland from the rest of Ireland. It is also known as the Irish Border or simply as the border.

The island of Ireland comprises the Republic of Ireland, which is a sovereign country, and Northern Ireland, which is part of the United Kingdom. The Republic of Ireland endured a hard-fought birth.

The Republic of Ireland is a member state of the European Union while the United Kingdom is a former member state, having both acceded to its precursor entity, the European Economic Community (EEC), in 1973 but the UK left the European Union in 2020 after a referendum on EU membership was held in 2016 which resulted in 51.9% of UK voters ...

The Westminster Parliament now governed the United Kingdom of Great Britain and Northern Ireland. The British monarch, King George V, continued to be head of state in the Irish Free State, but the External Relations Act, 1936, reduced his role.

Nov 11, 2021 · Back to the British Isles – "Remember" warn the OS, "this only refers to geography, not nationality, and while the Republic of Ireland is part of the British Isles, its people are not British – a very important distinction."

Jan 21, 2019 · Today Northern Ireland (part of the UK) and the Republic of Ireland (an independent country) make up the island of Ireland. But that wasn't always the case. Before 1921 the entire...

Mar 24, 2023 · Despite sharing a land border, Northern Ireland and the Republic of Ireland have different political systems, currencies, and laws. Northern Ireland is part of the UK and has its own...