regional or geographical fellowships: North American Baptist Fellowship, Asia Pacific Baptist Federation (formerly Asian Baptist Federation), All-Africa Baptist Fellowship, Caribbean Baptist Fellowship, Latin American Baptist Union, and European Baptist Federation. Each regional fellowship is served by an Executive Secretary. List of presidents Baptist World Congress Baptist World Congresses have been held every few years since 1905. Social programs The denomination has an affiliated humanitarian organization, BWAid. Ecumenical relations The Baptist World Alliance is involved in ecumenical dialogues, including with the Roman Catholic Church and the World Methodist Council. One series of International Conversations between the BWA and the Catholic Church took place from between 1984 and 1988 moderated by the Reverend Dr David T. Shannon, sometime President of Andover Newton Theological School, and the Most Reverend Bede Heather, Bishop of Parramatta. While this dialogue produced the report called Summons to Witness to Christ in Today's World, the second phase did not push through because of opposition from within the Baptist World Alliance itself. Negotiations continued, however, so that a series of consultations transpired from 2000 to 2003. During this period the Baptists and Catholics discussed important doctrines that divide these denominations. These second series of conversations resulted in formal meetings between 2006 and 2010. The current Co-Moderators are Paul Fiddes, Professor of Systematic Theology in the University of Oxford and formerly Principal of Regent's Park College, Oxford, and Arthur J. Serratelli, Bishop of Paterson. Controversies In 2004, the Southern Baptist Convention of the United States left the BWA after it had accused then-BWA President Kim of adopting a liberal theology because of his support for the exercise of pastoral ministry of women, its alleged anti-Americanism, and because member denominations including the American Baptist Churches USA and the Progressive National Baptist Convention allow the autonomy of its churches to perform same sex marriages. Alliance Secretary General Denton Lotz replied that the Alliance was not liberal, but evangelical conservative, that the American Baptist Churches USA in its constitution believed only in marriage between a man and a woman and that any accusations of anti-Americanism had resulted from his visits to Fidel Castro in Cuba for the import of Bibles and the expansion of the freedom of belief. The SBC also claimed the Alliance refused to discuss abortion stances. In a General Council Resolution, the Alliance lamented the widespread resort to abortion but acknowledges the diversity of views and calls on Baptists to