26 May, 1969 Operation Pipestone Canyon began when the 1st Battalion, 26th Marines and 3d Battalion, 5th Marines began sweeps in the Dodge City/Go Noi areas southwest of Da Nang. It terminated at the end of June with 610 enemy killed in action at a cost of 34 Marines killed. Previous Article 23 May 1988 Next Article 29 May 1991 Print Day of Month (for ordering)26