Operation Toan Thang II  Operation Toan Thang II ("Complete Victory") was a U.S. Army and Army of the Republic of Vietnam (ARVN) operation conducted between 1 June 1968 and 16 February 1969 in the Vietnam War. The operation was designed to keep pressure on Vietcong (VC) and People's Army of Vietnam (PAVN) forces in III Corps. The operation was a continuation of Operation Toan Thang I in the same operational area and with largely the same forces. On 1 June a unit of the 2nd Brigade, 1st Infantry Division found a PAVN/VC base camp near Dầu Tiếng Base Camp, an arms cache in the base contained 81 SKS rifles, three light machineguns and two radios. At 14:25 a unit of the 1st Brigade, 9th Infantry Division air assaulted into a hot landing zone near Bến Lức District and engaged PAVN/VC forces who withdrew at 19:15 leaving 11 dead; U.S. losses were five killed. A UH-1 Iroquois was shot down west of Saigon. On 2 June between 01:40 and 03:25 15 rounds of mortar/rocket fire hit Saigon killing five civilians and destroying three houses. At 11:15 helicopter gunships from the cavalry squadron of the 25th Infantry Division engaged enemy forces west of Phú Cường and cavalry troops were later landed in the area. The enemy withdrew at 18:00 leaving 33 dead among 37 destroyed bunkers. At 13:40 a unit of the 199th Light Infantry Brigade (199th LIB) engaged an enemy force northeast of Tân Uyên, the enemy withdrew at 18:15 leaving 12 dead; U.S. losses were 3 killed. On 4 June between 01:03 and 01:45 40 rounds of mortar/rocket fire hit Saigon injuring 12 civilians and causing minor damage to two ships. On 5 June at 01:25 a unit of the 11th Armored Cavalry Regiment (11th ACR) in a night defensive position near Trảng Bàng District received 50 rounds of mortar fire, the unit returned fire supported by artillery and an AC-47 "Spooky" gunship, the enemy withdrew at 02:50 laving seven dead and one captured and two individual and two crew-served weapons. The base camp and village at Lai Khê was hit by five 122mm rockets killing three civilians.