File:Nvastruc.jpg

Summary
USer created diagram- NVA

image creation: simple Powerpoint screenshots- a bunch of Powerpoint boxes and arrows for the diagrams, Powerpoint clipart and icons to represent things like ships, men, or trucks etc., and inset photos from public domain US Govt Documents -The Army Engineer in Vietnam, The U.S. Army Engineer School, Fort Belvoir, VA. US ARMY CORPS OF ENGINEERS- Office of History and US Army: http://www.army.mil/cmh/books/Vietnam/Sharpen/index.htm#contents.