 Upon creation, the 766th Unit was designed to vary in size, consisting of a number of smaller units capable of acting alone.Eventually, it was reinforced to the size of a full regiment, with 3,000 men equally distributed across six battalions (numbered 1st through 6th).It was made directly subordinate to the KPA Army headquarters and put under the command of Senior Colonel Oh Jin Woo, who would command the unit for its entire existence.