This week is the Week of Prayer for Christian Unity (18-25 January), often abbreviated as WPCU. It involves Christian communities from across the world and from almost every denomination.
There are many different Christian churches and denominations, but all have the same basic calling – to worship God, to share the good news about Jesus Christ, and to work for the good of all people. So they often need to work together, as well as co-ordinate the work they each do separately. When they do, they are acting as Churches Together. But being Churches Together means more than that. It means commitment by each church and denomination to deepen its fellowship with the others and, without losing what makes each interestingly different, to work with them towards a greater visible unity.
To help the churches live as Churches Together, a number of small organisations have been created to ease their way. There is one in almost every town or community to help them to work together locally. There are others in the regions and for each of the four nations of Wales, Scotland, Ireland and England. There is also an umbrella organisation in the UK, Churches Together in Britain and Ireland (CTBI), from which I have obtained the above information. Additionally, there is the World Council of Churches.
You can find helpful resources on the CTBI website, including for WPCU below: