Dr. William Fray Vendley is the Secretary General Emeritus of the World Conference of Religions for Peace (WCRP). He is a member of its World Council and coordinates the activities and projects of WCRP's Inter-religious Councils in 70 countries and in five regions, including the Africa, Asia Europe, Latin America, and the Middle East. He is a member of the Council on Foreign Relations.

Vendley is a pioneer in employing religious cooperation to help resolve conflict. For example, he facilitated the establishment of the Religions for Peace Inter-religious Council of Bosnia-Herzegovina in the immediate aftermath of the civil war, which resulted in its setting forth an historic commitment of the religious communities to re-build a single, multi-ethnic Bosnia. He established the Religions for Peace Inter-religious Council of Sierra Leone and served as a consultant in the peace talks in Lome, Togo, that ended the violent conflict between the Sierra Leone government and rebels. He convened senior Iraqi religious leaders in Amman three weeks after the occupation of Iraq resulting in their commitment to develop an Inter-religious Council of Iraq and equipped them to cooperate in the provision of humanitarian assistance.