David Greenlee finds himself at home in many corners of the world. His ministry with Operation Mobilization since 1977 has taken him to countries across Asia, Africa, the Americas, and Europe. Together with his wife Vreni and their three children, David has served with the ships Logos, Doulos, and Logos II as leader of OM's ministry in North Africa, and since 1998 as OM's International Research and Strategy Associate. David holds a PhD in Intercultural Studies from Trinity Evangelical Divinity School, Deerfield, Illinois, USA, and an MS in Electrical Engineering from the University of Colorado. He is the editor of Global Passion: Marking George Verwer's Contribution to World Mission and author of The Heart of Missions: Poetic Reflections of God's Global Servants.