Staff Sgt. Chadd Jackson (left), a career retention specialist with Wounded Warrior Battalion-East, Wounded Warrior Regiment, Manpower and Reserve Affairs, and Lt. Col. Thomas Siebenthal, the battalion’s commanding officer, pose for a photograph after Jackson’s re-enlistment ceremony here, April 30. Jackson is the first Marine in the battalion to re-enlist on a permanent light duty status. - Staff Sgt. Chadd Jackson (left), a career retention specialist with Wounded Warrior Battalion-East, Wounded Warrior Regiment, Manpower and Reserve Affairs, and Lt. Col. Thomas Siebenthal, the battalion’s commanding officer, pose for a photograph after Jackson’s re-enlistment ceremony here, April 30. Jackson is the first Marine in the battalion to re-enlist on a permanent light duty status.