Rolf is the founder of Combat Archaeology. He holds an MA degree in Maritime Archaeology from the University of Southampton and another MA degree in Prehistoric Archaeology from the University of Copenhagen. His studies have preeminently been on the subject of combat and conflict in the past, ranging from Mesolithic violence to organized state formation in the Renaissance. He holds the rank of sergeant in the Royal Danish Army and is enrolled as a cadet in the Royal Danish Military Academy, though currently on leave. In addition to this, Rolf holds the position of instructor and head instructor in the martial arts Wing Tsun and Weapons Combat Systems, respectively, and teaches classes and holds seminars on an international and national level.