Rolf is the founder of the Society for Combat Archaeology (SoCA). 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 has obtained the rank of sergeant in the Royal Danish Army. In addition to this, Rolf holds the position of Master and instructor in the martial arts of Weapons Combat Escrima and Wing Tsun, respectively, and teaches classes and holds seminars on both an international and national level.