A general view of the Blue Nile River as it passes through the Grand Ethiopian Renaissance Dam (GERD), near Guba, in Ethiopia, on Dec. 26, 2019. Eduardo Soteras/AFP via Getty Images
Austin Bay is a colonel (ret.) in the U.S. Army Reserve, author, syndicated columnist, and teacher of strategy and strategic theory at the University of Texas–Austin. His latest book is “Cocktails from Hell: Five Wars Shaping the 21st Century.”