This action was dubbed "TCK-TKN" by its planners, and Kontum was one target
This action was dubbed "TCK-TKN" by its planners, and Kontum was one target of this event. A major supply route for this military action was the subject of Operation Igloo White, in which microphones were dropped to listen for voices before bombs were dropped.  A battle resulting from this action saw 2,500 marines attempt to hold "The Citadel."  For 10 points, name this military action that led to the battle of Hué and the siege of Khe Sanh and saw concerted attacks on Saigon and many other cities, a general push by the Viet Cong during the namesake Vietnamese New Year holiday.
This action was dubbed "TCK-TKN" by its planners, and Kontum was one target of this event.
{Tet Offensive} (accept equivalents) or {Tong Cong Kich} or {Tong Khoi Ngia}