Ireland is a large island in the North Atlantic, geopolitically split between the Republic of Ireland (covering five-sixths) and Northern Ireland, which is part of the United Kingdom. Despite its relatively low woodland cover (around 10%), the island is known for its lush greenery, thanks to a mild, rainy climate, and its population exceeded 7 million in 2022.

Historically, Gaelic Ireland emerged around the 1st century AD, followed by Christianisation in the 5th century and Viking raids that culminated in the Battle of Clontarf (1014). English control expanded from the 12th century onward, eventually consolidating under the Tudor conquests and the Acts of Union in 1801, making Ireland part of the UK.

The devastating Great Famine in the 1840s cut the population by over 20% through starvation and mass emigration. The subsequent struggle for independence led to the island’s partition, creating the Irish Free State (which declared itself a republic in 1948) and leaving Northern Ireland within the UK.

In modern times, both nations joined the European Economic Community in 1973, and Northern Ireland’s long sectarian conflict ("the Troubles") was ended by the Good Friday Agreement in 1998. After the UK’s 2020 Brexit, Northern Ireland was granted a special status, allowing it to remain in the EU's single market for goods.

Finally, Irish culture—renowned for its literature, Gaelic games, music, and dance—has had a powerful global influence, while still sharing many commonalities with Great Britain, including the English language and sports like rugby and golf.