The collection consists of 2.25 linear feet of military documents donated by the 3/5 Cavalry Black Knight's Association. The collection contains Operation Reports-Lessons Learned, Command Chronologies, order of battle information, senior officer debriefing reports, After Action Reports, histories of specific battles, Daily Staff Journals, Rosters, and Morning Reports. The materials pertain to the 3rd Battalion 5th Cavalry Black Knights’ service in Vietnam, as well as the service of other units including the 9th Infantry Division, 34th Engineer Group, 54th Artillery Group, 1st Cavalry, II Field Force Vietnam, 1st Air Cavalry, 101st Airborne, 1st Infantry Division, 5th Infantry Division, and 3rd Marine Division. The materials also pertain to operations taking place from 1967 through 1970 including Operations Kien Giang, Santa Fe, Akron, Rock, Houston, Worth, Tampa, Coronado, Greene River, and Task Force Kilo Phase I. The materials predominately date from 1966 through 1974.