30 after they were shackled as retribution as part of the escalation of Germany's new Commando Order. Lt.Col. James Taylor had asked German senior officer Georg Friemel to supply 100 prisoners to volunteer to be shackled as part of the ongoing international dispute. When he refused, Otto Kretschmer and Hans Hefele were also asked to provide volunteers, but refused. Taylor ordered the guards to find 100 officers to be shackled by force, and Horst Elfe, Kretschmer and others barricaded themselves in the mess hall, arming themselves with sticks, iron bars and other makeshift weapons. Approximately 100 Canadian soldiers requisitioned from another base arrived, and together stormed the mess hall using only baseball bats, so the two sides remained evenly matched. After several hours of brawling, the Canadians brought high pressure water hoses and soaked the cabin thoroughly until the prisoners agreed to come out peacefully. During later incidents in the battle which spanned several days, Volkmar König was wounded by gunfire and another bayoneted, and a Canadian soldier suffered a skull fracture from a thrown jar of jam. After calm had returned, 126 of the prisoners were transferred to other camps. Geography Bowmanville is surrounded by rural areas on three sides, and Lake Ontario to the south. Farmland formerly covered central Bowmanville until the population increased, thus establishing a nascent downtown core by the early 19th century. There is a harbour to the south of Bowmanville in Port Darlington. Climate Under the Köppen climate classification Bowmanville has a humid continental climate with warm summers and cold winters. Unlike many other locations on similar latitudes on the eastern half of the North American continent the winters are relatively mild, with cold extremes being moderated by the proximity to Lake Ontario. In spite of this the average low is around in January. Summers are normally moderately warm with averages of around during the day but with nights cooling off rapidly to fall below on many occasions. Economy Bowmanville is home to the historic Bowmanville Foundry, the Darlington Nuclear Generating Station, a Royal Canadian Mounted Police regional office, Goodyear conveyor belt factory (recently sold). There is a marina on Lake Ontario at Port Darlington, south of town. Bowmanville was a finalist for the ITER project. Southern Ontario's GO Train commuter rail service is to be expanded to Bowmanville by 2024. This will increase the efficiency of public transportation to nearby cities such as