[2] After graduation, he was deployed to serve in the Volunteer Squadron and assigned to command 4th Airlift Center with the task of paving roads, clearing mines and patrolling.

In early October 1953, he was promoted to HQ Lieutenant as deputy commander of the river assault group in Vĩnh Long.

In 1955, with the change from the National Army naval branch to the Republic of Vietnam Navy (RVNN), he was promoted to HQ Captain and appointed Assistant Commander of the Landing Craft Support Linh Kiem HQ-226.

In early 1957, he was appointed RVNN commander to replace HQ Colonel Le Quang My and he concurrently served as director of the Saigon Naval Shipyard.

In early 1960, he was the first senior RVNN officer sent to the command class at the Naval War College in Newport, Rhode Island.

[2] In December 1991, he and his family emigrated to the United States under the sponsorship of the former Commander Naval Forces Vietnam, Elmo Zumwalt and settled in San Jose, California.