Captain Arthur W. Gullachsen is a Fellow of the Royal Historical Society and a Professor in the RMC History Department at the Royal Military College of Canada in Kingston, Ontario. After joining the Canadian Armed Forces (CAF) in late 2006, he gained acceptance into the PhD program in history at Western University in London, Ontario, graduating in 2016. A Second World War specialist, Captain Gullachsen’s areas of expertise include the study of the replacement of equipment and personnel losses as well as German armored forces during the late war period. He is also interested in twentieth-century airpower and seapower. He is the author of Bloody Verrières, Volumes I and II (2022 and 2023), and The Defeat and Attrition of the 12. SS-Panzerdivision Hitlerjugend (2024 and 2025)