7 Aug Has dyke development in the Vietnamese Mekong Delta shifted flood hazard downstream? Nguyen Van Khanh Triet1,4, Nguyen Viet Dung1,4. NORTH VIETNAM: THE DIKE BOMBING ISSUE. Conclusions l. Hanoi's strident propaganda campaign alleging deliberate US bombing of the dikes continues. 2 Oct Control of the rivers has been crucial to the Vietnamese people's The construction of dykes along rivers is without a doubt one of the most.