How did the United States build military logistics facilities in South Vietnam after 1965?

Following the large-scale U.S. intervention in 1965, the United States undertook a massive $4 billion construction program to build a modern logistical infrastructure in South Vietnam, as the country lacked the necessary facilities to support modern military forces.1

This construction effort was carried out concurrently with the deployment of U.S. troops by a combination of military engineer units from the Army, Navy, and Air Force, alongside a consortium of private engineering contractors. Key components of this infrastructure included:1

• Ports: Seven deepwater ports and several smaller ones were constructed to facilitate the arrival of deep-draft shipping from the United States.1
• Airfields: The program built eight jet-capable air bases featuring 10,000-foot runways, as well as 200 smaller airfields and 200 heliports.1
• Storage and Transport: Millions of square feet of covered and refrigerated storage were created, supplemented by hundreds of miles of new roads, bridges, oil pipelines, and storage tanks.1

A notable example of this development was at Cam Ranh Bay, where the U.S. military transformed the peninsula into a vast supply-base complex and airfield site.23