Colonel David G. Hansen, Ph.D., served in the US Army for thirty-five years. He taught at the US Army War College for nine years, was the chairman of the Department of National Security and Strategy, and a tenured professor. He left active military service with academic degrees in geography and international relations. David then taught at Penn State for eight years while finishing his Ph.D. in biblical studies. David has participated in five archaeological seasons either under the direction of Dr. Wood or Dr. Livingston. He has traveled extensively and lectured in the Middle East, published articles in several journals about the impact of geography on military affairs and the Bible, authored one book (In Their Sandals, Xulon Press, 2008) and co-authored three. His latest co-authored books, A Visual Guide to Bible Events (selected as one of the top five 2010 books in its category by the Christian Evangelical Publishers Association) and A Visual Guide to Gospel Events(selected as one of the top five 2011 books in its category by the Christian Evangelical Publishers Association), are available through ABR. David served as the president of the ABR Board of Directors for 8 years, and has written many articles for Bible and Spade and the ABR Website. David has been an ABR Associate since August, 2009.