Devolution involves transferring power from central government to regional entities like Scotland, Wales, and Northern Ireland. Pressure from European integration and regional nationalism led to devolution for Scotland and Wales through 1998 acts, granting them legislative assemblies. Northern Ireland gained a power-sharing assembly and government through the 1998 Good Friday Agreement, ending decades of conflict. While devolution has enabled some policy divergence, its impact on governance has been limited, and the lack of an elected assembly for England has complicated the system. Overall, devolution remains popular in Scotland, Wales, and Northern Ireland.