The military ski patrol was held as a demonstration sport in 1936 and 1948, in addition to 1948. For many years it was considered a demonstration sport in 1924, as well, but research by Ture Widlund, co-founder and the first Vice-President of the International Society of Olympic Historians (ISOH), showed that both curling and military ski patrol had the same status in 1924 as all the other sports on the Winter Program, and the 1924 event is now acknowledged as a full-medal Olympic event. A similar event to the military ski patrol was the team event contested at the biathlon World Championships between 1989 and 1998. The participants wore military equipment, 10 kg of baggage on the back and a military rifle. Only the officers, the patrol leaders, had pistols and they did not compete in shooting. At the range the shooters shot at three rubber balloons at a distance of 150 m.