Lt. Col. Lars Ostervold, outgoing commander of 120th Engineer Battalion, 90th Troop Command, Oklahoma Army National Guard, addresses the battalion, family and distinguished guests for the last time as commander of the 120th at Camp Gruber Training Center, Oklahoma, Jun 14.

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Keywords: air, america, archive, armed, army, change, command, defence, engineers, force, forces, guard, military, national, navy, oklahoma, reportage, service, serviceman, servicemen, soldier, states, united, usa