A firefighter with the Camp Pendleton Fire Department explains the scheme of maneuver to another firefighter during a controlled burn training exercise on Marine Corps Base Camp Pendleton, Calif., June 3. - A firefighter with the Camp Pendleton Fire Department explains the scheme of maneuver to another firefighter during a controlled burn training exercise on Marine Corps Base Camp Pendleton, Calif., June 3.

An aircraft hovers over water at the Wildland Firefighting Exercise 2016 hosted by Marine Corps Base Camp Pendleton at Las Pulgas Lake, May 5, 2016. The Wildland Firefighting Exercise 2016 combines elements of aviation and ground units from Marine Corps Base Camp Pendleton, 3rd Marine Air Wing, Navy Region Southwest, The California Department of Forestry and Fire Protection, and the San Diego's Sheriff's Department. - An aircraft hovers over water at the Wildland Firefighting Exercise 2016 hosted by Marine Corps Base Camp Pendleton at Las Pulgas Lake, May 5, 2016. The Wildland Firefighting Exercise 2016 combines elements of aviation and ground units from Marine Corps Base Camp Pendleton, 3rd Marine Air Wing, Navy Region Southwest, The California Department of Forestry and Fire Protection, and the San Diego's Sheriff's Department.