Countries of the United Kingdom

Within the United Kingdom, a unitary sovereign state, Northern Ireland, Scotland and Wales have gained a degree of autonomy through the process of devolution. The UK Parliament and British Government deal with all reserved matters for Northern Ireland and Scotland and all non-transferred matters for Wales, but not in general matters that have been devolved to the Northern Ireland Assembly, Scottish Parliament and National Assembly for Wales. Additionally, devolution in Northern Ireland is conditional on co-operation between the Northern Ireland Executive and the Government of Ireland (see North/South Ministerial Council) and the British Government consults with the Government of Ireland to reach agreement on some non-devolved matters for Northern Ireland (see British--Irish Intergovernmental Conference). England, comprising the majority of the population and area of the United Kingdom, remains fully the responsibility of the UK Parliament centralised in London.

Question: is wales a part of the united kingdom
Answer: yes