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all six crew members and devastated the boat. That same day, the VC sank MSB-45, killing two
American sailors and wounding another 16. On 20 April 1967, while en route to Saigon, T-LST-550 came under 75mm recoilless-rifle fire that killed one Japanese crew member and wounded another five. On 18 November the VC attacked
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infantry units swept through Nhơn Trạch and part of the Rừng Sác. The operation resulted in the destruction of four VC base camps and the death or capture of 53 VC. Afterward, U.S. and South
Vietnamese forces kept applying pressure on the VC, frustrating their efforts to regroup. Army bulldozers and
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In August 1966 attackers sank an RVNN minesweeper, killing or wounding five
Vietnamese sailors and wounding two American naval advisers. The VC sank another minesweeper in January 1967. On 15 February 1967 VC ambushers struck MSB-49 with 75mm recoilless-rifle and automatic-weapons fire that wounded
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The VC launched 51 assaults in the first half of 1969. In June an operation was launched against the VC sapper battalion operating from the Nhơn Trạch
District north of the Rừng Sác. A force of U.S. and South Vietnamese riverine combatants; attack helicopters; and U.S.,
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Heavy VC activity against U.S. merchant ships and river patrol forces on the Long Tau occurred during the period from
December 1965 to February 1967. During that period the enemy made 18 attacks against allied vessels, including the 23 August 1966 attack on the
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aerial-sprayed herbicides denuded much of the Rừng Sác’s foliage. The VC did not launch a single attack on the merchant ships transiting the Lòng Tàu well into 1970. On 1 November 1970 the VC carried out an attack on the
American President Lines' SS
248:(1 ATF) tactical area of responsibility. From July to November 1970 1 ATF forces mounted 17 boat patrols in the Rung Sat with limited results, before switching to helicopter patrols that would land troops to investigate any VC sightings.
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The Saigon River, which meandered through the Rung Sat
Special Zone, a VC-dominated area also known as the "Forest of Assassins," provided allied seaborne logistics a direct route to the South Vietnamese
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Due to the difficult conditions for ground operations within the zone, the VC regarded it as a safe area, however from 1965 onwards the USAF began defoliating the area as part of
35:. It was also known as the "Forest of Assassins." The name was derived from a misinterpretation of the Vietnamese word Sát to mean "assassin". The actual name, Rừng Sác, is a
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On 20 May 1966 the U.S. Navy established Mine
Squadron 11, Detachment Alpha (later renamed Mine Division 112). The unit’s twelve 57-foot fiberglass-hulled MSBs, along with
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On 8 June 1962, the South
Vietnamese Government organized the Rung Sat Special Zone (Đặc khu Rừng Sác) as a military region in order to defend the
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using paravanes and chain drag sweeps to sever electrical wires that connected mines in the river with VC guerrillas ashore ready to trigger them.
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including over 4,800 kilometres (3,000 mi) of interlocking streams located approximately 36 kilometres (22 mi) south-southeast of
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Following the conclusion of
Operation Jackstay, the Marines handed over responsibility for the zone to the 1st Battalion,
23:) was the name given during the Vietnam War by the South Vietnam Government and American forces to a large area of the
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word that roughly translated to "salty forest," a reference to its proximity to the saltwater marshes of the delta.
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The Sác Forest comprises approximately 1,256 square kilometres (485 sq mi) of tidal
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Following attacks on allied shipping on the Lòng Tàu River, from 27 March to 6 April 1966,
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New Zealand's Vietnam War: A history of combat, commitment and controversy
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Fourth Arm of Defense Sealift and Maritime Logistics in the Vietnam war
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This article incorporates text from this source, which is in the
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In 1968 the VC launched 44 attacks. In April two men on the tug
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were killed. On 30 August the VC hit the roll-on/roll-off ship
205:. A further five merchant ships were attacked during 1967.
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Helicopter view of the Rung Sat Special Zone, November 1967
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with a 122mm rocket, mortally wounding one crewmember.
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designated the area as the D-10 Special Military Zone.
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cross a stream on patrol near Rừng Sác, 27 October 1967
510:is available for free viewing and download at the
244:The Rung Sat formed the western boundary of the
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293:"Rung Sat Special Zone Intelligence Study"
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51:Members of Company "B", 3rd Battalion,
437:. Naval History and Heritage Command.
500:Navy map of the Rung Sat Special Zone
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267:The Encyclopedia of the Vietnam War
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300:Mobile Riverine Force Association
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507:STAFF FILM REPORT 66-19A (1966)
428:Mercogliano, Salvatore (2017).
324:. Hellgate Press. p. 450.
31:), which is today known as the
393:Pezzoli, Ray (December 2001).
91:. Its boundaries in 1962 were
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79:fly over the Zone, June 1969
530:Base areas of the Viet Cong
395:"Vanguards in the Rung Sat"
320:Kelley, Michael P. (2002).
265:Tucker, Spencer C. (2011).
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350:Vietnam Center and Archive
535:Saigon in the Vietnam War
291:Haines, E. R. (c. 1962).
246:1st Australian Task Force
149:1st Battalion 5th Marines
322:Where We Were in Vietnam
199:American President Lines
179:Republic of Vietnam Navy
33:Cần Giờ Mangrove Forest
471:McGibbon, Ian (2020).
191:SS Baton Rouge Victory
164:18th Infantry Regiment
151:and two Battalions of
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172:9th Infantry Division
168:Mobile Riverine Force
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372:"Operation JACKSTAY"
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111:to the east and the
105:Tiền Giang Province
97:Nhơn Trạch District
382:on 6 October 2008.
231:President Coolidge
203:President Buchanan
157:Operation Jackstay
153:Vietnamese Marines
109:Phước Tuy Province
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346:"Operations List"
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155:launched
131:Viet Cong
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235:SeaLand
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