The history of Greenbelt is here. From the history page:
As Greenbelt has cemented its partnership with development agency Christian Aid, Greenbelters have been able to translate debate about political engagement and international injustice into vigorous campaigning. Other organisations have also entered into collaboration from CMS and SPCK, to USPG and YMCA, ICC and The Church Times. Enhancing the festival's identity, they have also helped Greenbelters re-imagine the church as an infectious global conspiracy, working for God's peace, healing and friendship in previously unimagined ways.
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