Defending Earth: Local students learn to protect Louisiana ecosystems Published April 25, 2017 By Senior Airman Luke Hill 2nd Bomb Wing BARKSDALE AIR FORCE BASE, La. -- Natural resources personnel teach students about the local ecosystem and how to protect it during an Earth Day field trip at Barksdale Air Force Base, La., April 21, 2017. Children learned about different animals in the local ecosystem and the history behind Barksdale’s East Reservation. (U.S. Air Force photo/Senior Airman Luke Hill)