For nearly 15 years, North Vietnam, used a complex logistical road network in Laos and Cambodia (both neutral) to supply Communist forces in South Vietnam known as the Ho Chi Minh Trail. U.S. leadership was unwilling to conduct a ground campaign into Laos and Cambodia. The default was a nine-year air interdiction campaign, the most intense and brutal in history. Experienced historian Peter Davies has assembled a remarkable amount of research into a concise and very readable Osprey Air Campaign Series book.
An extended introduction is followed by a review of the capabilities of the respective opponents, the campaign itself, and the results. There is a lot of information here, much of which was classified by one side or the other at the time, and nicely backed by lots of period photographs and modern illustrations, diagrams, and maps. The author's analysis is honest and notably even-handed. The book is well recommended to students of the conflict.