Paula L. Backs, left, a community planning specialist for Marine Corps Air Station Yuma, Ariz., is awarded a certificate of appreciation by Col. Ricardo Martinez, the commanding officer of MCAS Yuma, at the air station, Wednesday, Aug. 28, 2014. Backs, a native of Lisbon, N.D., was presented the award for 30 years of service to the government of the United States of America.