Williams became Archbishop of Canterbury at a particularly difficult time in the relations of the churches of the Anglican Communion.
His predecessor, George Carey, had sought to keep the peace between the theologically conservative primates of the communion such as Peter Akinola of Nigeria and Drexel Gomez of the West Indies and liberals such as Frank Griswold, the then primate of the US Episcopal Church.

In 2003, in an attempt to encourage dialogue, Williams appointed Robin Eames, Archbishop of Armagh and Primate of All Ireland, as chairman of the Lambeth Commission on Communion, to examine the challenges to the unity of the Anglican Communion, stemming from the consecration of Gene Robinson as Bishop of New Hampshire, and the blessing of same-sex unions in the Diocese of New Westminster. (
Robinson was in a same-sex relationship.)
 The Windsor Report, as it was called, was published in October 2004.
It recommended solidifying the connection between the churches of the communion by having each church ratify an "Anglican Covenant" that would commit them to consulting the wider communion when making major decisions.
It also urged those who had contributed to disunity to express their regret.

In November 2005, following a meeting of Anglicans of the "global south" in Cairo at which Williams had addressed them in conciliatory terms, 12 primates who had been present sent him a letter sharply criticising his leadership which said that "We are troubled by your reluctance to use your moral authority to challenge the Episcopal Church and the Anglican Church of Canada."
The letter acknowledged his eloquence but strongly criticised his reluctance to take sides in the communion's theological crisis and urged him to make explicit threats to those more liberal churches.
Questions were later asked about the authority and provenance of the letter as two additional signatories' names had been added although they had left the meeting before it was produced.
Subsequently, the Church of Nigeria appointed an American cleric to deal with relations between the United States and Nigerian churches outside the normal channels.
Williams expressed his reservations about this to the General Synod of the Church of England.

Williams later established a working party to examine what a "covenant" between the provinces of the Anglican Communion would mean in line with the Windsor Report.
Williams became Archbishop of Canterbury at a particularly difficult time in the relations of the churches of the Anglican Communion. His predecessor, George Carey, had sought to keep the peace between the theologically conservative primates of the communion such as Peter Akinola of Nigeria and Drexel Gomez of the West Indies and liberals such as Frank Griswold, the then primate of the US Episcopal Church.
In 2003, in an attempt to encourage dialogue, Williams appointed Robin Eames, Archbishop of Armagh and Primate of All Ireland, as chairman of the Lambeth Commission on Communion, to examine the challenges to the unity of the Anglican Communion, stemming from the consecration of Gene Robinson as Bishop of New Hampshire, and the blessing of same-sex unions in the Diocese of New Westminster. (Robinson was in a same-sex relationship.)  The Windsor Report, as it was called, was published in October 2004. It recommended solidifying the connection between the churches of the communion by having each church ratify an "Anglican Covenant" that would commit them to consulting the wider communion when making major decisions. It also urged those who had contributed to disunity to express their regret.
In November 2005, following a meeting of Anglicans of the "global south" in Cairo at which Williams had addressed them in conciliatory terms, 12 primates who had been present sent him a letter sharply criticising his leadership which said that "We are troubled by your reluctance to use your moral authority to challenge the Episcopal Church and the Anglican Church of Canada." The letter acknowledged his eloquence but strongly criticised his reluctance to take sides in the communion's theological crisis and urged him to make explicit threats to those more liberal churches. Questions were later asked about the authority and provenance of the letter as two additional signatories' names had been added although they had left the meeting before it was produced. Subsequently, the Church of Nigeria appointed an American cleric to deal with relations between the United States and Nigerian churches outside the normal channels. Williams expressed his reservations about this to the General Synod of the Church of England.
Williams later established a working party to examine what a "covenant" between the provinces of the Anglican Communion would mean in line with the Windsor Report.
Rowan Williams