Covenanted Churches in Wales
A covenant was signed in 1975 between the Church in Wales, the Methodist Church of Great Britain, the Presbyterian Church of Wales (PCW), the United Reformed Church (URC) and some covenanted Baptist churches. These Covenanted Churches work together on issues of faith and worship and are pledged to ever-closer ecumenical cooperation.
Source: Wikipedia — Covenanted Churches in Wales (CC BY-SA 4.0)