John Andreas Olsen is a colonel in the Royal Norwegian Air Force, currently assigned to London as defence attach. He is also a visiting professor at the Swedish Defence University and a non-resident senior fellow of the Mitchell Institute. His previous assignments include tours as director of security analyses in the Norwegian MoD, deputy commander at NATO Headquarters, Sarajevo, dean of the Norwegian Defence University College and head of the college's division for strategic studies. Olsen is a graduate of the German Command and Staff College and has served as liaison officer to the German Operational Command and as military assistant to the Norwegian Embassy in Berlin. He has a doctorate from De Montfort University and a master's degree from the University of Warwick. Olsen has published a series of books, including Strategic Air Power in Desert Storm (2003), John Warden and the Renaissance of American Air Power (2007), A History of Air Warfare (2010) and Airpower Reborn (2015).