1st Marine Division
5th Marine Division
9th Cavalry Regiment
Tet Offensive and aftermath
Easter Offensive (1972)
Post-Paris Peace Accords (1973–1974)
Operation Mameluke Thrust was a US Marine Corps operation that took place in Happy Valley southwest of Danang, lasting from 19 May to 23 October 1968.
On 9 May the 1st Marine Division commander MG Donn J. Robertson was ordered to conduct a spoiling attack into the valleys west of Danang and around Thường Ðức Camp. The loss of Kham Duc on 12 May raised the concern that the People's Army of Vietnam (PAVN) would next seek to overrun Thường Ðức. PAVN units in the area were believed to include the 31st Regiment, 341st Division and the 368B Rocket Regiment.:338