A Scout troop is a group of mounted scouts in the military or an expedition and the term was adopted into use with Boy Scouts, Girl Scouts and the Scout Movement. The term troop followed cavalry, mounted infantry and mounted police use for organizational units.
In the Scout Movement, a Scout troop is an organizational unit consisting of a number of patrols of Scouts, Boy Scouts, Girl Scouts or Girl Guides. Girl Guides often use the terms unit instead of patrol and company instead of troop. The initial organization unit in the Scout Movement was a patrol of about 6 to 8 Scouts. Where there were a number of patrols, they could form a Scout troop. Scout troops are composed of boys and/or girls usually aged 10 to 18 years. Some Scout organizations have senior Scout patrols within Scout troops or senior Scout troops for the older youths. The size of a Scout troop can vary from as few as six Scouts to several dozen. Scout troops may meet regularly at a meeting place. In addition, some Scout troops are active in the organization of additional activities.
In some Scout organizations a Scout troop can be part of a Scout Group that combines the Scout troop with programs for different age groups such as Beavers, Cubs, Explorers or Venturers and Rovers, while in other Scout organizations the different age groups are independent of each other even though they may be sponsored or chartered by the same community organization, such as a business, service organization, school, labor group veteran's group, or religious institution.
A key component of the Scout method is that Scout troops are run by the Scouts under the advice and guidance of adult leaders. Scout Troops operate on the patrol method. Each Scout patrol is led by a Scout called the patrol leader. The patrol leaders within a Scout Troop form a Court of Honour or council under of the adult leader of the Scout Troop. Some Scout Organizations allow a Scout to be appointed as a senior patrol leader or troop leader who heads the Scout troop and Court of Honour. The Court of Honour is responsible for the management, program and activities of the troop. The leadership role of the adult and Scout members of the Court of Honour vary, and in some troops it is the norm for the adult leader to play a mentorship role, teaching the youth responsibility in their own leadership roles.