This topic is traditionally defined as the manner in which fuel ignites, flame develops, and fire spreads by the interaction of fuels, weather, and topography. In the database, it covers the physics and movements of fire, but it also contains subtopics that address weather conditions that affect fire behavior, what fire managers should know when fighting fire, major factors that control fire behavior, models that predict fire behavior, results of experimental burn tests that test fire behavior models, and case studies of well-known fires that exhibited extreme fire behavior.