In 1961 US special forces units began etering remote areas of Vietnam dominated by the Viet Cong. Their task was to organise local defence and strike forces aimed at stopping the enemy from gaining further control of such areas. The Green Berets set up fortified camps akin to forts of the old American Frontier, but adapted to modern warfare, from which indigenous troops defended local villages and attacked and harassed the enemy. How these camps were constructed, developed and defended is documented here for the first time. This book also covers the weapons, barriers and obstacles used in these camps, providing spesific examples of camp design and details how they withstood the test of battle against a determined and resourceful enemy.