The Unitarian Christian Association (UCA) is a relatively small, though growing fellowship of Christians who feel an affinity with traditional Unitarianism and Free Christianity. The association is based in the United Kingdom and is an affiliated society of the General Assembly of Unitarian and Free Christian Churches, and has formal links with the European Liberal Protestant Network. As such, the UCA should be considered to be part of three Christian subcultures—the distinct traditions of Unitarianism and Free Christianity, and the broader 'umbrella movement' of liberal Christianity.