Responsibilities
As American forces prepared the South Vietnamese military to assume complete responsibility for the war under the Nixon Administrations Vietnamization policy, they also worked to keep pressure on the enemy. Due to the successes of Operation Market Time and Operation Game Warden; one of the few places left for the North Vietnamese to smuggle troops and supplies into the Mekong Delta was through the rivers, canals and lakes that were near the Cambodian border.
The Navy in particular spearheaded a drive in the Mekong Delta to isolate and destroy the weakened Communist forces. The Sealords program was a determined effort by U.S. Navy, South Vietnamese Navy, and allied ground forces to cut enemy supply lines from Cambodia and disrupt operations at his base areas deep in the delta. It was developed by Vice Admiral Elmo R. Zumwalt, Jr., appointed COMNAVFORV (Commander US Naval Forces Vietnam) in September 1968.
Read more about this topic: Operation Sealords