Forest fires pose great threats not only to forests, but also to villages and facilities adjacent to forests and to houses within forests. Many reports warn that the occurrence and severity of forest fires will increase due to climate change, and many cases of forest fires supporting these warnings are appearing around the world. The occurrence of such forest fires not only affects areas that have not been invaded by humans, such as Alaska, the frozen soil regions of Siberia, and the Amazon, but also poses threats to many cities where people are living in areas near forests.