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The FReeper Foxhole Remembers Operation Niagara (Jan-Mar, 1968) - Mar. 16th, 2005
Vietnam Magazine | 1998 | Peter Brush

Posted on 03/15/2005 8:39:30 PM PST by SAMWolf



Lord,

Keep our Troops forever in Your care

Give them victory over the enemy...

Grant them a safe and swift return...

Bless those who mourn the lost.
.

FReepers from the Foxhole join in prayer
for all those serving their country at this time.


.................................................................. .................... ...........................................

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Operation Niagara


The thing that broke the back of the NVA at Khe Sanh, said General Westmoreland, was 'basically the fire of the B-52s.'

By late January 1968, American intelligence sources had detected 20,000 or more NVA soldiers in the vicinity of Khe Sanh. American tactics were to allow the enemy to surround the 26th Marine Regiment (Reinforced) at Khe Sanh, to mass their forces, reveal troop formations and logistic routes, establish storage and assembly areas, and prepare siege works. The result would be the most spectacular targets of the Vietnam War for American firepower.



General William C. Westmoreland, commander of U.S. forces in Vietnam, chose the code name "Operation Niagara" for the coordination of available firepower at Khe Sanh. According to Westmoreland, the name Niagara invoked an appropriate image of cascading shells and bombs. Niagara would be composed of two elements. Niagara I was the comprehensive intelligence-gathering effort to pinpoint the available targets, and Niagara II was the coordinated shelling and bombing of these targets with all available air and artillery assets.

The effectiveness of the firepower available to the Marines at Khe Sanh was heavily dependent on target selection--a responsibility of the intelligence section (S-2) of the 26th Marine Regiment Headquarters Company. S-2 knew the siege strategy employed by the NVA at Dien Bien Phu in 1954 and Con Thien in 1967, and it could predict the enemy's actions at Khe Sanh.

Various sources were utilized to keep track of enemy activity around the Khe Sanh plateau. Sources outside the immediate battlefield included intelligence reports from MACV in Saigon, III Marine Amphibious Force (III MAF) headquarters in Da Nang, as well as the headquarters of the 3rd Marine Division at Phu Bai.



Intelligence was generated locally in many ways. Hundreds of acoustic and seismic sensors were seeded around the combat base. This comprehensive sensor system cost approximately $1 billion and was credited with reducing Marine deaths during the fighting by 50 percent. By Marine estimates, the sensor system provided 40 percent of the raw intelligence at Khe Sanh. Ground and aerial observers supplied visual evidence of enemy activity, as did photoreconnaissance. Analysis of incoming rocket, mortar and artillery craters determined the likely source of the attacks. Shell/flash reports, infrared imagery and analysis of intercepted enemy communications were also used to identify potential enemy targets.

Marine reconnaissance patrols, Army Special Forces, CIA personnel, and the MACV-SOG all provided input to the 26th Marines S-2. The CIA Joint Technical Advisory Detachment and SOG obtained their information from casual encounters with villagers; from regular paid agents, including Rhade and Bru Montagnards; and from locals who wanted to be agents of the U.S. intelligence community around Khe Sanh. Likely or confirmed targets were then pummeled by the available firepower, while the base Fire Support Coordinating Center (FSCC) coordinated the array of supporting arms.



After making the trip down the Ho Chi Minh Trail through Laos, the NVA established various forward logistic bases within a few thousand meters of the combat base. At night the Communists dug shallow trenches from their supply points toward the U.S. positions. American intelligence noticed this trenching system around February 23, 1968. Once the system had been constructed close to the base, secondary trench lines branched off and paralleled the Marine perimeter. These close-in, secondary trenches were dug for the purpose of launching ground attacks against the base.

Initial FSCC fire tactics were to saturate infiltration routes into the area around the combat base with artillery fire and airstrikes. This slowed down NVA trenching efforts but could not stop them completely. From a logistic standpoint, it was impossible to sufficiently saturate the trenching systems with massed artillery fire, so the FSCC altered its tactics. The NVA was permitted to dig trenches close to the base--then it was easier to pinpoint them.



The sensor system quickly proved its worth. During the night of February 3-4, sensors detected up to 2,000 NVA soldiers in the vicinity of Marine hill outposts northwest of the combat base. Defensive artillery fires were ordered against them, and sensors reported hearing men screaming in panic and the sounds of troops fleeing their assembly areas. The NVA units were completely destroyed in their assembly areas and the intended attack was effectively broken up. This is one of the earliest examples in warfare of a ground attack entirely thwarted by using remote sensor data.

With crater analysis, it was possible to confirm the location of enemy batteries, assist in counterbattery fires and detect new types of enemy weapons--new calibers or new munitions. The flight direction of a projectile could be determined with reasonable accuracy from its crater, ricochet furrow or, in the case of dud rounds, soil tunnel.

The particular characteristics of the soil at Khe Sanh often yielded valuable information through crater analysis. A stick placed in the soil tunnel made by a dud round would point in the direction of origin, and the angle of the stick would indicate the angle of fall. By measuring this angle and using the firing tables of enemy weapons, counterfire personnel could compute the range of the enemy weapon. Shelled areas were inspected as soon as possible after a shelling.


"Khe Sanh CAS"
During the siege at Khe Sanh, Marine aviators from various squadrons scraped the tree tops at high speed to provide Close Air Support to their fellow Marines on the ground. 400 knots at 30 feet. Air support doesn't get much closer.


Staff Sergeant Bossiz Harris, the acting gunnery sergeant of the mortar battery, 1st Battalion, 13th Marines, conducted crater analysis during incoming fire, which allowed the battalion's Fire Direction Center (FDC) to direct prompt return fire. Rapid and accurate counterbattery fire could force the enemy artillerymen to seek cover and could destroy NVA guns and gun crews.

To minimize the reaction time of the Marine and Army artillerymen at Khe Sanh, Colonel Lownds, the base commander, periodically entered the regimental FSCC bunker, indicated a spot on the wall map and directed the senior artillery officer to hit the marked spot. The coordinates were sent to the FDC, computed and sent to the appropriate gun crew, which adjusted its tubes. This aiming process usually took less than 40 seconds before a round was on its way. During the battle at Khe Sanh, the 1st Battalion, 13th Marine, guns fired 158,891 mixed artillery rounds in direct support of the 26th Marines.



TOPICS: VetsCoR
KEYWORDS: b52; f4; freeperfoxhole; khesanh; marines; tet; veterans; vietnam
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To: alfa6

It looks so peaceful there now.


21 posted on 03/16/2005 7:54:52 AM PST by Valin (DARE to be average!)
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To: snippy_about_it; SAMWolf; All

Good morning, Foxhole! Falling in for my Wednesday read. How are things with Sam and Snippy today?


22 posted on 03/16/2005 8:29:17 AM PST by Colonel_Flagg (Spring is the nicest day of the year.)
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To: SAMWolf
GM, Sam!

free dixie,sw

23 posted on 03/16/2005 8:31:16 AM PST by stand watie (being a damnyankee is no better than being a racist. it is a LEARNED prejudice against dixie.)
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To: snippy_about_it; bentfeather; Valin; radu; Iris7; Aeronaut; E.G.C.; The Mayor; Samwise; alfa6; ...

Good Morning all.

Have to dig out some old fence posts and put in new ones this morning. Lost about a 20 foot section of fence during the storms last winter and I can't put off replacing it any more. The joys of home ownership. ;-)

I promise not to work too hard, Snippy. ;-) It's all going to depend on how easy those old posts come out.


24 posted on 03/16/2005 8:48:20 AM PST by SAMWolf (Liberal Rule #4 - When faced with facts, ignore them.)
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To: Iris7

Prayers offered for Bill, Peggy and the family. Please keep us updated on his condition.


25 posted on 03/16/2005 8:49:42 AM PST by SAMWolf (Liberal Rule #4 - When faced with facts, ignore them.)
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To: snippy_about_it; bentfeather; Samwise; msdrby; Wneighbor
Good morning ladies. Flag-o-Gram.

The guided missile destroyer USS Porter (DDG 78) (right) leads the way during divisional tactics training along with the guided missile destroyers USS McFaul (DDG 74), USS Arleigh Burke (DDG 51) and USS Cole (DDG 67), and the guided missile cruisers USS Cape St. George (CG 71) and USS Anzio (CG 68) in the Atlantic Ocean, on March 5, 2005. The destroyers and cruisers are assigned to Commander, Carrier Strike Group 12. DoD photo by Lt. j.g. Caleb Swigart, U.S. Navy. (Released)

Guaranteed to get your bell bottoms wet size

26 posted on 03/16/2005 8:50:58 AM PST by Professional Engineer (Cough, cough, Wheez, wheez, won't somebody shoot me please.)
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To: SZonian
I didn't like the last comment about the US not being able to win at the conference table as well as not winning on the battlefield. It's a well known fact that the US would have beaten the NVA and ultimately the VC if the Armed Services had been allowed to do their jobs instead of the politicos telling them what to do.

AMEN!

27 posted on 03/16/2005 8:51:59 AM PST by SAMWolf (Liberal Rule #4 - When faced with facts, ignore them.)
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To: Professional Engineer

Morning PE.

Caught me just as I was about to leave and do some "real" work. ;-)


28 posted on 03/16/2005 8:53:13 AM PST by SAMWolf (Liberal Rule #4 - When faced with facts, ignore them.)
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To: SAMWolf
Hiya Sam. I was sleeping all day yesterday myself. Gonna head for some more in a minute.

We bought a new Saturn Relay for Msdrby Monday, she got to pick it up yesterday. This is the color she choose.


29 posted on 03/16/2005 9:02:19 AM PST by Professional Engineer (Cough, cough, Wheez, wheez, won't somebody shoot me please.)
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To: SAMWolf; snippy_about_it

Today is Norton Update Day. Be sure to update your anti-virus software.


30 posted on 03/16/2005 9:03:07 AM PST by E.G.C.
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To: SAMWolf

Do you hire out? My mom's fence needs new posts and hubby is really dreading the work.


31 posted on 03/16/2005 9:27:41 AM PST by Samwise (Life is not measured by the number of breaths we take but by the moments that take our breath away.)
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To: Professional Engineer
We bought a new Saturn Relay for Msdrby Monday

Does it have a fun on the roof?

32 posted on 03/16/2005 9:28:51 AM PST by Samwise (Life is not measured by the number of breaths we take but by the moments that take our breath away.)
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To: Professional Engineer

Does it have a GUN on the roof? You can have fun with guns, no?

This typo wasn't all my fault. Hubby just called while I was posting. Oscar Robinson was on his plane and he is tickled.


33 posted on 03/16/2005 9:33:10 AM PST by Samwise (Life is not measured by the number of breaths we take but by the moments that take our breath away.)
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To: SAMWolf
President Lyndon B. Johnson ordered severe restrictions on aerial and naval attacks against North Vietnam

I hope he has a special place in hades.

34 posted on 03/16/2005 1:12:47 PM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: bentfeather

Good morning feather.


35 posted on 03/16/2005 1:13:33 PM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: Iris7

Prayers offered. God knows his last name, we don't need to.


36 posted on 03/16/2005 1:14:48 PM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: Valin
Beauty sleep

Ha. Who needs it.


37 posted on 03/16/2005 1:20:54 PM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: Aeronaut

Good afternoon Aeronaut.


38 posted on 03/16/2005 1:21:19 PM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: GailA

Good afternoon Gail.


39 posted on 03/16/2005 1:21:52 PM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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To: The Mayor

Thank you Mayor. Good afternoon.


40 posted on 03/16/2005 1:22:37 PM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
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