A wireless wild fire defense system network supporting proactive protection of life and property in GPS-specified neighborhoods using GPS-managed delivery of environmentally-clean anti-fire (AF) chemical liquid spray to property before wild fire reaches the neighborhoods. The wireless system network includes a GPS system for providing GPS-location services to each system components in the wireless system network. A wireless communication network supports one or more network databases accessible by systems and devices deployed on the wireless communication network. A fleet of mobile GPS-tracked anti-fire liquid spraying systems are assigned to GPS-specified neighborhoods for spraying anti-fire chemical liquid on combustible property, buildings, and ground cover to inhibit fire ignition and flame spread wherever the anti-fire chemical liquid is sprayed. When allowed to dry, the anti-fire chemical liquid provides fire-protection status to sprayed property that is GPS-tracked and mapped within a network database maintained on the wireless communication network, recording wherever the environmentally-safe anti-fire chemical liquid has been spray applied. The system network includes mobile computing systems, each running a mobile application and deployed to a property owner, spray contractor or other stakeholder, such as firefighters and property insurance inspectors, for remotely monitoring the fire-protection status of property in any GPS-specified neighborhood, at any time on any specified date, along with the status of active wild fires surrounding the neighborhood. A command center deployed on the wireless system network transmits wild fire alerts and notifications and property spray orders, and supports microservices configured for monitoring and managing GPS-tracked spraying operations within GPS-specified neighborhoods. Through GPS-managed delivery of anti-fire chemical liquid spray on property surfaces before arrival of wild fire, fire ignition and flame spread are inhibited, and human and animal life and property are protected.