A training exercise on Kirtland Air Force based ignited the early March fire in the East Mountains that spread across 200 acres. An investigation by the 277th Air Base Wing Safety showed the Piñon Juniper Fire was started by a ground burst simulator. Like smoke grenades, ground burst simulators are used to prepare military personnel for scenarios and sounds they might encounter in combat. James Fisher with Kirtland Public Affairs said an interdisciplinary team has since developed and implemented new guidelines for training with smoke canisters, diversionary devices and ground burst simulators during times of high fire risk. “Training procedures have been amended to ensure that risk associated with fire hazard conditions requires substitutions with non-hazardous equipment or omission of certain training activities,” according to Fisher.