The Four Countries of the United Kingdom: England, Scotland, Wales, Northern Ireland

The United Kingdom of Great Britain and Northern Ireland is a sovereign state comprising four constituent countries:

1. England

• Capital: London
• Population: ~56 million (84% of UK)
• Area: 130,279 km² (53% of UK)
• Key features: London, Stonehenge, Lake District, Cotswolds, Oxford/Cambridge, industrial Midlands
• Governance: No devolved parliament; UK Parliament at Westminster

2. Scotland

• Capital: Edinburgh
• Population: ~5.5 million (8%)
• Area: 77,933 km² (32%)
• Key features: Highlands, islands (Hebrides, Orkney, Shetland), Loch Ness, Edinburgh Castle, Glasgow
• Governance: Scottish Parliament (Holyrood) — devolved powers (health, education, justice, transport)
• Legal system: Distinct Scots law (mixed civil/common law)

3. Wales (Cymru)

• Capital: Cardiff
• Population: ~3.1 million (5%)
• Area: 20,779 km² (8%)
• Key features: Snowdonia, Pembrokeshire Coast, Brecon Beacons, 600+ castles, Welsh language (Cymraeg)
• Governance: Senedd (Welsh Parliament) — devolved powers (health, education, language, local gov)

4. Northern Ireland

• Capital: Belfast
• Population: ~1.9 million (3%)
• Area: 14,130 km² (6%)
• Key features: Giant's Causeway, Mourne Mountains, Derry/Londonderry, Titanic Quarter
• Governance: Northern Ireland Assembly (Stormont) — devolved (health, education, justice, agriculture); power-sharing mandatory
• Border: Only UK land border with EU (Ireland) — post-Brexit protocol complexities

What Unites Them

• Shared monarch (Charles III)
• UK Parliament (reserved: defense, foreign policy, currency, immigration, trade)
• Single market, currency (GBP), BBC, NHS (separate systems but coordinated)
• British citizenship

Crown Dependencies ≠ UK

Isle of Man, Guernsey, Jersey are not UK countries—they're self-governing Crown Dependencies.