Sadiri Joy Tira, DMiss, DMin, is the Diaspora Missiology Specialist at Jaffray Centre for Global Initiatives, Ambrose University (Calgary, Alberta, Canada). Dr. Tira was the Founding Chairman of the Global Diaspora Network (2010-2015) and served as Senior Associate/Catalyst for Diasporas (2007-2019) of the Lausanne Movement. He studied Missiology and Theology from Canadian Theological Seminary, Taylor Seminary, Reformed Theological Seminary, and Western Seminary.