Cpl. Ryan E. Wanner, Headquarters and Support Company, 1st Battalion, 9th Marines, 2nd Marine Division, marches with the company guidon during the pass in review at the unit?s reactivation ceremony held at 10th Marines landing zone April 18. The battalion was first activated in March 1942 and is known for fighting valiantly in many Vietnam campaigns, from Da Nang to Khe Sanh, during their tour of duty. - Cpl. Ryan E. Wanner, Headquarters and Support Company, 1st Battalion, 9th Marines, 2nd Marine Division, marches with the company guidon during the pass in review at the unit?s reactivation ceremony held at 10th Marines landing zone April 18. The battalion was first activated in March 1942 and is known for fighting valiantly in many Vietnam campaigns, from Da Nang to Khe Sanh, during their tour of duty.