The Department for Unity, Faith and Order in the Anglican Communion has at its core the search for deeper unity between Christians, be that within and between the churches of the Anglican Communion or between the Anglican Communion and other Christian churches and bodies.

Much of the work of Unity, Faith and Order (which goes by the extra–terrestrial acronym UFO) is taken up with encouraging Christians to talk together. Over the course of the last century much work has been done to break down mutual suspicion and division between churches by patient dialogue and the building up of relationships. This happens at the local level, where Christians find that when they come together to pray or get involved with mission and ministry that they have more in common than they first thought. It also happens at national and international level, when theologians from different churches and traditions talk together to come to agreement on issues that have previously divided them.