Lt. Colonel Gjert Lage Dyndal is Dean of Academics at the Royal Norwegian Air Force Academy. From 2003 to 2005 he was Head of the Maritime Air Power Section at the Royal Norwegian Naval Warfare Centre. He was awarded his PhD from the University of Glasgow in 2009 and is author of three previous books, ’Trenchard and Slessor: On the Supremacy of Air Power over Sea Power’ (2007); ’Strategisk ledelse i krise og krig’ [Strategic Leadership in Crisis and War] (2010), and ’Exit Afghanistan’ (with prof Torbjorn Knutsen) (2012) .