Troops are formed by volunteers . . .you! A Girl Scout troop consists of at least two non-related adult volunteer troop leaders and at least five girls of the same age and grade level. Troops meet together regularly (you choose how often), usually for the duration of the school year. Troops provide an opportunity for girls to discover, connect, and take action through a variety of activities including events, troop trips, cookies, science, badge work, service, etc.