Dr Jerry White is international president emeritus of The Navigators. The Navigators is a mission organization of 5,500 staff members who serve in evangelism and discipleship in 107 countries. In the US, they work among students, the military, and churches. Dr White has a master’s degree and PhD in astronautics from Purdue University. He taught as an associate professor in astronautics at the US Air Force Academy. He served in the US Air Force for 37 years (active-reserve) and retired as a Major General. Dr White is a member of the board of directors for the Lausanne Movement.