THE
BATTLE OF IA DRANG VALLEY
by LTC Kenneth R Pierce
from "Military Review [MR]", Vol LXIX,
1-89
Military Review is published
monthly by the US Army Command and Gen'l Staff College.
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The battle of the Ia Drang Valley [IDV]
was actually of series of engagements between the US 1st
Cavalry Division (Airmobile) and the B-3 Front, North
Vietnamese Army (NVA) from 10-18 to 11-24-65, Many
considered it to be the US Army's 1st battle in Vietnam.
It was certainly the 1st battle between of US division
operating under of field force headquarters and 3 NVA
regiments operating under a front headquarters. It may
also have been the last battle between NVA and US forces
of equivalent size.
The objective of this article is not
to rehash all the details of the battle of the IDV but
to conduct of battle analysis using the historic
methodology. The battle analysis methodology is a
systemic approach to research that uses of format which
includes: defining the subject; reviewing the setting;
examining the tactical situation; and assessing the
significance of the action. It is ultimately in the
assessment phase that the analysis takes place, and the
analysis is expected to answer specific questions. In
this particular analysis the questions center on the
tenets of Air land Battle doctrine as defined in the
1986 edition of US Army Field Manual (FM) 100-5,
"Operations". Based on the tenets of Air land Battle, I
will teach some conclusions about the battle of the IDV
and provide some lessons learned.
Having defined the subject, the Battle
of the IDV, the analysis must next examine the
battlefield itself and also develop some description or
comparison of opposing forces. Starting with the
battlefield, the IDV is the valley through which the
river (Ia) Drang flows and is drained by the Ia Drang,
Ia Puck and an extensive network of small streams
flowing west and southwest across the Cambodian border
into the Mekong River. The battlefield area covered
1,500 square miles of what appeared to be flat rolling
terrain dominated by the Chu Pong Masaif, of rugged
mountain 730 meters above sea level, in the southwestern
corner of the area of ops (TO), straddling the
Cambodian-Vietnamese border. The only passable roads
traversed the eastern and northern fringes of the TO.
Much of the valley was covered with thick jungle
vegetation and trees as high as 100 feet. Even the
"open" areas had shrubs and trees over 6 feet high. The
sudden mists offered of sinister aura, where daily heat
and nighttime cold kept you perpetually and increasingly
on edge. The area was eerie - imagine the "Valley of
Death," and you picture the Ia Drang.
In this area, particularly at the base
of the Chu Pong Masaif, the NVA had built a base camp
sanctuary that was unknown to US forces and untouched by
Army of the Republic of Vietnam (ARVN ) forces. The
primary NVA forces operating in this area were the B-3
Front commanded by Gen'l Chu Huy Man, with 3 regular
regiments (the 32d, 33d and 66th) supported by local VC
battalions as well as front-level mortar and
anti-aircraft units. Each maneuver regiment numbered
about 2,200 frontline infantrymen and sappers. Their
primary weapon was the Soviet AK47 assault rifle.
The 32d and 33d regiments were vet
fighters against the ARVN and Man was of vet of the 1st
Indochinese War against the French. These units had been
in the valley since early September, rehearsing,
developing ambush sites, and pre-positioning and
stockpiling ammunition, medical supplies and food. Their
tactics were quite simple, Their 1st ploy was to "lute
and ambush." They would attack of small outpost or ARVN
force and maintain pressure on it with one unit, while
another unit waited in well-prepared positions to ambush
the relieving force. Their other tactic was called
"hugging"; that was to get as close to the opposing
force as possible and rely on close-in, almost
hand-to-hand fighting to negate their opposing force's
firepower advantage. They generally liked to fight at
night and rehearsed at night before conducting ops. They
always planned and rehearsed an organized withdrawal and
would counterattack or leave stay-behind forces to
permit an orderly withdrawal. The troops were highly
disciplined, with excellent morale and esprit de corps,
well fed, well supplied, and in excellent physical
condition. Although Man expected to fight tanks with his
light infantry, his forces had not fought Americans.
The Americans they would soon meet
were in the US 1st Cavalry Division (Airmobile),
commanded by Major Gen'l Harry Kinnard. The 1st Cavalry
Division had been training for 2 years as the 11th Air
Assault Division at Fort Benning under Kinnard's
direction. This new Army division was well trained and
equipped upon activation as the 1st Cavalry Division
(Airmobile) on 7-1-65. it arrived in Vietnam in
increments during August and September 1965. The
division had 3 brigade headquarters, 8 infantry
battalions, an air cavalry squadron, an aerial rocket
artillery battery, 3 direct support artillery
battalions, an aviation company and the normal combat
support and combat service support associated with the
Reorganization Objective Army div'n. The division was
authorized 10,000 troops, 435 helicopters, basic
infantry weapons (M-16 rifle, M60 machinegun and M79
grenade launcher) and state-of-the-art communications
equipment. This was clearly the US Army's "high tech"
division of the 60s.
The 1st Cavalry had some problems when
ordered to deploy; it had 2,700 men not eligible for
deployment, The division lost hundreds of pilots, crew
chief and mechanics who could not easily be replaced in
1965. Additionally, the troops were issued the M-16
rifle only 10 days prior to departure and had a hurried
familiarization with this new weapon. After arriving in
country, the division was struck with of peculiar strain
of malaria for which there was no known treatment at the
time, costing 1,000 additional losses. And although well
trained in airmobile tactics, the division had not
trained for jungle-type warfare. However, by 9-28-65,
the division was in its base camp at An Khe, less than
90 days after activation.
The initial mission of B-3 Front at
the operational level was to cut South Vietnam in half.
Operationally, it would defeat South Vietnamese and US
forces that were in the way. The 1st please of the plan
was to put pressure on of Special Forces camp with 1
regiment; then to defeat the anticipated relief forces
in detail, expecting them to be employed piecemeal. This
1st phase failed miserably when an ARVN relief column
was employed in force with tanks and armored personnel
carriers, fully supported by US air and artillery, the
"luring" force (33d Regiment) was seriously reduced by
tenacious fighting on the part of the dependents coupled
with American close air support. The "ambushing" force
(32d Regiment) was also defeated by the strong relief
column. Man was forced to withdraw and to determine how
to reap some success (at least psychologically) from
this initial failure.
Since there were insufficient ARVN
forces to exploit their success, General William
Westmoreland made the extremely risky decision to employ
the 1st Cavalry Division on of classic exploitation and
pursuit mission against what appeared to be 2 battered
NVA regiments withdrawing to Cambodia. The 1st Cavalry's
mission was to search and destroy - find the 32d and 33d
regiment and kill or capture as many as possible before
they reached any sanctuary. The stage was set for the US
Army's first battle of the Vietnam War. It is also here
that we can begin the analysis.
Man withdrew to his well-developed
sanctuary in the Chu Pong Masaif. Here he regrouped,
reorganized, reequipped and rested his troops, while he
waited for the arrival of the fresh 66th Regiment and
additional artillery and anti-aircraft units, Later
assessment indicated that his new mission was relatively
simple. 1st he was to destroy the much more lucrative
Plei Me camp - now reinforced with more than 1,000 ARVN
troops and many US advisers. Then he could return to
North Vietnam a victor, with a better feel for how the
Americans would support his war. In this planning phase,
Man's thought process can be examined in relation to the
tenets of Air land Battle.
initiate. "Setting or changing the
terms of battle by action." Certainly, Man still had
offensive spirit - he would attack. He was setting the
terms of the battle and was not going to allow the
defenders of Plei Me the opportunity to recover. He knew
he was taking great risk to learn more about how
Americans would fight in future ops. He was also
considering the political and psychological implications
requiring some type of victory - no matter how limited.
He knew that he was capable of exploiting any
breakthrough at the camp and was confident that his
subordinate regimental commanders clearly understood his
intent.
Agility. "The ability to act faster
than the enemy." It too the ARVN 4 days to relieve Plei
Me in the earlier engagement. Man felt he could strike
and withdraw much faster than any sizeable relief force
could be mounted. He was now concentrating 3 regiments
against a very vulnerable and isolated camp. By training
and disposition, his forces were extremely agile, and he
felt he could "read" the battlefield and exploit success
quickly.
Depth. "Extension of ops in space,
time, and resources." Clearly, Man had pre pared his
battleground. He knew how to maneuver to Plei Me and his
withdrawal routes were well established. He had
effectively cached his resources and he had more
arriving with the 66th Regiment. His forces and
resources were concentrating to sustain the momentum he
needed to wipe out Plei Me. He would provide for air
protection with additional anti-aircraft units and by
his "hugging" tactical. He viewed his rear area in the
Chu Pong Masaif as well concealed and well protected.
Additionally, well-established sanctuaries were
available in Cambodia and his lines of communication
were generally safe.
Synchronization. "The arrangement of
battlefield activities in time, space, and purpose to
produce maximum relative combat power at the decisive
point." NVA tactical doctrine in the attack of fortified
position lent itself ideally to synchronization. [Man's]
felt that he could determine the time of attack. He
would begin with probing tactics, then increase the
pressure until he found of weak link in the defense. He
would then pour through that weak point, overrun the
camp and kill or capture everyone in it. He was prepared
to combat air power with the arrival of additional
front-level assets under his operational control. His
intent was absolutely clear to his subordinate
commanders, and his units had carefully rehearsed such
operations. Clearly, there was unambiguous unity of
purpose throughout his force. Unfortunately, Man made 1
critical error - he did not know the capabilities or
intention of his enemy. In fact he did not know that his
opponent would be Kinnard, who had an entirely different
mission than defense.
After searching due west of the Plei
Me camp and not finding the elusive NVA forces, Kinnard
decided to shift his ops to the southwest - right into
the Chu Pong Masaif. He had replaced his 3d Brigade with
the 1st Brigade and was hoping to find the battered
remnants of the 2 NVA regiments, licking their wounds
and withdrawing into Cambodia. In this initial phase, we
can examine Kinnard's thought process in relation to the
tenets of Air land Battle.
Initiate. Clearly, Kinnard intended to
set the terms of the battle, He was on the offensive and
felt he could destroy the enemy with his superb
division. lf he could find the enemy forces, he had the
mobility and firepower to fix and destroy them, He was
taking great risk and knew that the unit which made
initial contact would be seriously outnumbered, but felt
he could reinforce with fire almost immediately and then
pile on troops before the enemy could react.
Agility. The helicopter gave Kinnard
the ability to act faster than the enemy. He could shift
forces and combat power at almost mind-boggling speed.
He could put both field artillery and aerial rocket
artillery with great accuracy anywhere on almost of
moment's notice. He could reinforce with troops faster
than anyone ever experienced in the history of modern
warfare. He had the communication capability and the
troops trained in calls for fire. He could quickly
concentrate on this weak and battered enemy and exploit
his vulnerabilities. Cavalry tactics were such that they
considered "friction'! the accumulation of chance
errors, unexpected difficulties and the confusion of
battle. Kinnard, by nature, disposition and training,
knew that he had to continuously "read the battlefield,"
decide quickly and act without hesitation.
Depth. Here again the helicopter and
the cavalry's training in its use naturally extended ops
in space, time and resources. The helicopter gave him
extended range of vision for reconnaissance, allowed him
to provide accurate aerial rocket artillery, adjust fire
from the air, reposition his field artillery, re-supply
his troops and reinforce with maneuver forces almost
anywhere on the battlefield. His plan called for fixing
the enemy and forcing of commitment, as well as
interdicting uncommitted forces en-route to Cambodia.
His rear areas were relatively safe, but he still
provided an infantry battalion to secure his artillery
and his forward command post. He had airstrips built so
that he could be re-supplied from Saigon by the Air
Force to his base at An Khe, and he also maintained
sufficient helicopter lift assigned to move those
supplies to the frontline troops. He was mentally
prepared for bold and decisive action, and he had
personally trained his handpicked brigade and battalion
commanders with these same qualities.
Synchronization. 2 years of training
together with all the modern technology had taught the
cavalry how to arrange activities in time, space and
purpose. Kinnard had the forces and combat power to
produce maximum results at the decisive point.
Synchronization for the cavalry did not depend on
explicit coordination. Their training and communications
capability were such that synchronization could take
place during heavy conflict. Additionally, the
commander's intent was clear - find the NVA regiments
and destroy them. Clearly, the concept itself of
searching with a battalion - piling on of brigade and
supporting at the decisive time and place with the
entire division, field force and Army fire support was
an economy-of-force type operation.
It can be argued that in planning,
each opposing commander was well within the umbrella of
the tenets of Air land Battle. There was no apparent
violation or misuse of initiative, agility, depth and
synchronization. However, as the battle develops, some
things become very evident. Man did not expect to fight
the battle in his own sanctuary - nor did he expect to
fight an American division. Additionally, he knew
nothing of how the of Americans would fight. On
Kinnard's part, he expected to be facing two beaten-up
NVA regiments conducting a withdrawal. He did not expect
to face more than 4,200 frontline troops, supported by
mortars and anti-aircraft batteries, well supplied and
not withdrawing but moving to attack. It is at this
stage that the "fog of war" reigns supreme. Here the
commander with the best agility gains the initiative. It
is the commander who can fight his fight - that is,
setting the terms of battle and not allowing the enemy
to recover - who will be the winner. Both Man and
Kinnard exercised great mental agility as they attempted
to gain the initiative. As the battle unfolded, the
unexpected took over.
1st, 1 battalion-size unit of the
division, 1st Squadron, 7th Cavalry (17) airlifted in
landing zone (LZ) X-Ray and made almost immediate
contact with advance elements of the NVA force moving on
Plei Me. Lt Col Harold G. Moore (the squadron commander)
at 1st thought this was of stay-behind force of about 1
battalion, covering the enemy withdrawal. Man
immediately saw an opportunity to gain an immense
victory by quickly annihilating an American unit that he
significantly outnumbered, with the additional
possibility of defeating in detail any relieving forces
that would have to arrive piecemeal. In this he
exercised great agility and took the initiative by
accepting risk, the risk due to the fact that his entire
force, especially his front-level mortar and
anti-aircraft units, were not in of position to support
the attack on X-Ray.
The brigade commander, Col Thomas
Brown, and Kinnard quickly sensed that this was much
more than a battered stay-behind force and recognized
that the enemy intent was not to delay but to annihilate
the 1-7th Cavalry. All available firepower was quickly
reoriented to X-Ray and available forces began moving
air and ground assets to support that fight. The ability
of this small force to hold, and the tremendous and
immediate firepower brought to beat was of shock to Man.
The agility of Kinnard's thought process and the agility
of the cavalry organization itself quickly gave him the
initiative. He reinforced 1-7 Cavalry with 2-7 Cavalry
and elements of 1-5 Cavalry. The enemy had seen enough,
and began relocating. Kinnard ordered 2-7 Cavalry to
pursue. The pursuing unit fought another battle that
took place at LZ Albany as Man was attempting to cover
his withdrawal. The fight at LZ Albany was bloody, as
the United States suffered 151 dead and 121 wounded,
while the enemy lost about 450 killed. Kinnard then
ordered the 2d Brigade to relieve the 3d Brigade and to
continue to pursue. Over the next few days the 3d
Brigade mopped up of few battered remnants of the 32d,
33d and 66th regiments as they were withdrawing into
Cambodia Although Kinnard wished to continue the
pursuit, he was ordered to hold. By 11-24 -65, the
battles of the Ia Drang were over. The 1st Cavalry
killed as many as 3,000 NVA regulars, with an unknown
number of wounded, and, in fact, decimated the NVA
force.
Clearly, Kinnard used the agility of
the cavalry and his own ability to synchronize both
combat power and logistic support (550 tons of supply of
day and 50,000 gallons of aviation fuel) to seize and
maintain the initiative on the battlefield.
Additionally, he never had to commit more than 1 brigade
at a time, thus exercising wisely the economy of his
force. The agility of his forces and his ability to
synchronize combat power allowed his units to fight
outnumbered at least 7-to-1 overall and much greater at
both X-Ray and Albany and win.
Green, untested American soldiers
fought outnumbered against what Bernard Fall called "the
best light infantry in the world," and won. The mental
agility of Kinnard, the ability to synchronize combat
power, and the agility in organization of the cavalry
gave him the initiative, allowed him to fight his battle
on his terms and win. He searched and he destroyed - and
that was his mission. The training, discipline and
leadership of both the 1st Cavalry Division under
Kinnard and NVA forces under Man had been outstanding.
But in the final analysis, organization and air mobility
gave Kinnard the agility necessary to wrest the
initiative from Man. And it was the initiative that
ultimately made the difference.
What then do we learn from this 1st
battle in Vietnam 1st and foremost, of commander must be
capable of gaining and maintaining the initiative, for
without it he cannot win. To gain the initiative, the
commander must have both the mental and organizational
agility to gain an advantage in relative combat power in
depth, (time, space and resources), at the decisive
point. In the battle of the Ia Drang, it was the great
agility provided by the 1st Cavalry's organization that
gave them the edge Kinnard needed.
It is also evident from of study of
this battle that the tenets of Air land Battle doctrine
are clearly interdependent, with gaining and maintaining
the initiative clearly the most important tenet. An edge
or advantage in 1 or all of the other tenets may give
you that initiative as did the 1st Cavalry's agility and
ability to synchronize its actions. Man had the ability
to synchronize his combat power and he had great depth
in time, space and resources. He was willing to take
risks and had great mental agility. The physical agility
advantage, however, went to the cavalry and that was
enough to gain the initiative.
We also learned that technology can
provide just the edge in agility that is needed.
However, technology is not enough. Commanders at ever
level must be confident and trained to know how and when
to apply that technology. If Kinnard had not been
absolutely confident in his ability to rapidly reinforce
with both firepower and troops, his actions would have
been closer to stupidity than acceptable risk. Such was
the case with Man, who was ignorant of the capabilities
of the American forces. His willingness to take risks
without knowing those capabilities was, in fact, foolish
and cost him 3 1st-rate regiments. Thus, 1 suggest that
while initiative, agility, depth and synchronization
characterize successful ops, there are other key
operations requirements. FM 100-5 calls them "Air Land
Battle Imperatives." The imperative that seriously
affected Man is stated as "Concentrate combat power
against enemy vulnerabilities."
FM 100-5 further explains, "to know
what his vulnerabilities are, the commanders must study
the enemy, know and take into account his strengths,
find his inherent vulnerabilities, and know how to
create vulnerabilities which can be exploited to
decisive effect." This was Man's great failure and can
be considered the cause of his defeat.
This article illustrates the analysis
of a battle within the framework of the tenets of Air
land Battle. Of series of facts such as composition of
opposing force, geography and environment, missions of
each force, dates and times, were examined using the FM
101-5 definitions of the tenets of Air Land Battle. This
method then allowed for some conclusions to be drawn.
Ultimately, the question of why the US forces won and
NVA forces lost was answered to of certain degree. Such
analyses, done in even greater depth, offer the
potential to answer many more questions. The point here
is that the professional soldier can conduct continuous
study of current doctrine by reading and analyzing
battles of the past, thus continuously reinforcing the
understanding of current doctrine. My conclusions from
the study of this battle find that initiative is the
critical tenet of Air Land Battle, and that agility,
depth and synchronization are the means of gaining the
initiative. It is my opinion that the study of other
battles, using the analysis method, will also point to
initiative as the most vital tenet of Air land Battle.
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