Conservation Law Enforcement Officers check abandoned mineshafts, historic cultural landmarks and the many plants and wildlife aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., during the King of the Hammers off-road racing and rock-crawling event, Feb. 7, 2018. CLEOs work to protect and preserve the base's many natural and cultural resources. ( Marine Corps

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Keywords: affairs, air, america, armed, army, center, cleo, combat, conservation, defence, employee, enforcement, environmental, federal, force, forces, government, law, magtftc, mcagcc, military, navy, officers, service, serviceman, servicemen, states, united, usa, usmc