Without explicit mention, the King continued to retain his role in external relations and the Irish Free State continued to be regarded as a member of the British Commonwealth and to be associated with the United Kingdom. From 1979 onwards this was expanded to include the whole of Europe.
A spokesman for the Irish Embassy in London recently said, "The British Isles has a dated ring to it, as if we are still part of the Empire. The members of the British-Irish Council (sometimes called the Council of the Isles) are representatives of the Irish and British Governments, the devolved administrations in Northern Ireland, Scotland and Wales, together with representatives of the Isle of Man and the Channel Islands. However, the three Crown dependencies remain outside of the EU. The Irish economy continued to grow in 2017 and is forecast to do so through 2019, supported by a strong export sector, robust job growth, and low inflation, to the point that the Government must now address concerns about overheating and potential loss of competitiveness.

Prior to post-World War II, both states mutually recognised each other's entry visas for foreigners. Almost complete import substitution was achieved in many sectors[8] behind a protective tariff barrier. The Conference is supported by a standing secretariat located at Belfast, Northern Ireland, dealing with non-devolved matters affecting Northern Ireland. Under the 2007, St. Andrew's Agreement, the Northern Ireland Executive agreed to support the establishment of a North/South Consultative Forum and to encourage parties in the Northern Ireland Assembly to support the creation of a North/South parliamentary forum. It envisages cooperation and exchanges involving both civil and military personnel. Ireland was to pay a one-off £10 million sum to the United Kingdom (as opposed to annual repayments of £250,000 over 47 more years). Country comparison Ireland vs United Kingdom 2020 Country comparison, you can compare any two countries and see the data side by side. For some time, the United Kingdom was supported by some other Commonwealth countries. Protocol 3 of the United Kingdom's succession treaty to the EU (OJ L 73, 27.03.1972).

The United Kingdom initially accepted the change in the name to Ireland. The question of the head of the Irish state from 1936 to 1949 was largely a matter of symbolism and had little practical significance. The Council has a permanent office located in Armagh, Northern Ireland, staffed by a standing secretariat. The UK is expected to officially leave the EU by the end of March 2019. Historically, relations between the two states have been influenced heavily by issues arising from their shared (and frequently troubled) history, the independence of the Irish Free State and the governance of Northern Ireland. Its stated aim is to "promote the harmonious and mutually beneficial development of the totality of relationships among the peoples of these islands". Under the terms of resulting Anglo-Irish Trade Agreement, all duties imposed during the previous five years were lifted but Ireland was still entitled to impose tariffs on British imports to protect new Irish "infant" industries. A 1981 meeting between the two governments established the Anglo-Irish Intergovernmental Council. Nationalism can take the form of Welsh nationalism, Cornish nationalism, English nationalism, Scottish nationalism, Northern Ireland nationalism, Irish nationalism in Northern Ireland or independence movements in the Isle of Man or Channel Islands.[34].