The U.S. Marine Corps University has a good summation of the 1st Marine Division’s involvement in the Vietnam War. Click on the text in red below to open the PDF file.
MCU Mission Statement
Marine Corps University/Education Command develops and delivers professional military education and training through resident and distance programs in order to prepare leaders for current and future military challenges; concurrently, it preserves and presents the history of the Marine Corps in order to inform decision-making and communicate Marine Corps heritage to Marines and the Nation.
MCU Vision Statement
Advance the legacy of Marine Corps warfighting excellence through a forward-thinking military academic institution that delivers world-class education to develop professional leaders.