This campaign was from 23 February to 8 June 1969. From Tet 1969 through the month of June, the enemy again tried to sustain an offensive. His inability to do so can be largely attributed to aggressive allied ground operations. Between 23 February and 8 June 1969, a total of 70 significant named ground operations were terminated resulting in heavy enemy loss of life and materiel. The main operations concluded during this period were:
(1). The 3d Marine Division's Operation KENTUCKY aimed at preventing enemy infiltration through the Demilitarized Zone in central Quang Tri Province. Throughout the early part of January 1969, Viet Cong/North Vietnamese Army forces continued to avoid major contacts with Free World Forces. Their continual movement to avoid friendly forces or to search for food and supplies contributed to a decrease in the enemy-initiated ground attacks and attacks-by-fire in Quang Tri Province.
(2). Operation NEVADA EAGLE, initiated on 17 May 1968 in Thua Thien Province, continued in 1969 as the U.S. 101st Airborne Division continued to defeat enemy personnel, and capture rice caches, material, and installations within its large area of operations, where it undertook offensive sweeps along Route 547 and around Song Bo.
(3). Two battalions of the 4th Marine Regiment were engaged in Operation SCOTLAND II. Initiated on 15 April 1968, this multi-battalion search and clear operation was centered in and around Khe Sanh.
(4). The IV Corps Tactical Zone Dry Weather Campaign began on 1 December 1968 in support of the overall mission to prevent Viet Cong units from interfering with pacification efforts. This operation, "Speedy Express," interdicted lines of enemy communication and denied him the use of base areas. In 1969 the 1st Brigade, 9th U.S. Infantry Division continued the operation in Dinh Tuong Province, using its highly successful night ambush tactics while the 2d Brigade continued its mission with the Mobile Riverine Force. Although engagements in Operation SPEEDY EXPRESS were typically small, the 9th Infantry Division fought several sizeable engagements with impressive results.
On 23 February U.S. Navy units and installations at Da Nang, Tan An, Ben Luc, Go Dan Ha, and Tra Cu came under numerous and widespread attacks associated with a new enemy offensive, but since many units in these areas were poised to meet these attacks they caused only minimal damage. April saw the heaviest cumulative enemy activity in the barrier interdiction camapign to date.