THE FINAL CAMPAIGN: Marines in the Victory on Okinawa
by Colonel Joseph H. Alexander, USMC (Ret)
L-Day and Movement to Contact
General Mulcahy did not hesitate to move the command
post of the Tactical Air Force ashore as early as L plus 1. Operating
from crude quarters between Yontan and Kadena, Mulcahy kept a close eye
on the progress the SeaBees and Marine and Army engineers were making on
repairing both captured airfields. The first American aircraft, a Marine
observation plane, landed on 2 April. Two days later the fields were
ready to accept fighters. By the eighth day, Mulcahy could accommodate
medium bombers and announced to the Fleet his assumption of control of
all aircraft ashore. By then his fighter arm, the Air Defense Command,
had been established ashore nearby under the leadership of Marine
Brigadier General William J. Wallace. With that, the graceful F4U
Corsairs of Colonel John C. Munn's Marine Aircraft Group (MAG) 31 and
Colonel Ward E. Dickey's MAG-33 began flying in from their escort
carriers. Wallace immediately tasked them to fly combat air patrols
(CAP) over the fleet, already seriously embattled by massed
kamikaze attacks. Ironically, most of the Marine fighter pilots'
initial missions consisted of CAP assignments, while the Navy squadrons
on board the escort carriers picked up the close air support jobs. Dawn
of each new day would provide the spectacle of Marine Corsairs taking
off from land to fly CAP over the far-flung Fifth Fleet, passing Navy
Hellcats from the fleet coming in take station in support of the Marines
fighting on the ground. Other air units poured into the two airfields as
well: air warning squadrons, night fighters, torpedo bombers, and an
Army Air Forces fighter wing. While neither Yontan nor Kadena were ex
actly safe havens each received nightly artillery shelling and
long-range bombing for the first full month ashore the two
airfields remained in operation around the clock, an invaluable asset to
both Admiral Spruance and General Buckner.
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As
invasion forces fanned out on Okinawa, the beaches were scenes of
organized disorder as shore parties unloaded the beans and bullets
needed by the assault troops. They also began unloading materiel which
would be needed later in the campaign. Department of Defense Photo (USMC)
118304
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While the 1st Marine Division continued to hunt down
small bands of enemy guerrillas and infiltrators throughout the center
of the island, General Geiger unleased the 6th Marine Division to sweep
north. These were heady days for General Shepherd's troops: riflemen
clustered topside on tanks and self-propelled guns, streaming northward
against a fleeing foe. Not since Tinian had Marines enjoyed such
exhilarating mobility. By 7 April the division had seized Nago, the
largest town in northern Okinawa, and the U.S. Navy obligingly swept for
mines and employed underwater demolition teams (UDT) to breach obstacles
in order to open the port for direct, sea-borne delivery of critical
supplies to the Marines. Corporal Day marveled at the rapidity of their
advance so far. "Hell, here we were in Nago. It was not tough at all. Up
to that time [our squad] had not lost a man." The 22d Marines continued
north through broken country, reaching Hedo Misaki at the far end of the
island on L plus 12, having covered 55 miles from the Hagushi landing
beaches.
For the remainder of the 6th Marine Division, the
honeymoon was about to end. Just northwest of Nago the great bulbous
nose of Motobu Peninsula juts out into the East China Sea. There, in a
six-square-mile area around 1,200-foot Mount Yae Take, Colonel Takesiko
Udo and his Kunigami Detachment ended their delaying tactics and
assumed prepared defensive positions. Udo's force consisted of two rifle
battalions, a regimental gun company and an antitank company from the
44th Independent Mixed Brigade, in all about two thousand
seasoned troops.
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Grinning troops of the 29th Marines hitch a ride on
board an M-7 self-propelled 105mm howitzer heading for Chuta in the
drive towards Motobu Peninsula. Department of Defense Photo (USMC) 117054
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Yae Take proved to be a defender's dream, broken into
steep ravines and tangled with dense vegetation. The Japanese sowed the
approaches with mines and mounted 20mm dual purpose machine-cannons and
heavier weapons deep within caves. As Colonel Krulak recalled: "They
were just there they weren't going anywhere they were
going to fight to the death. They had a lot of naval guns that had come
off disabled ships, and they dug them way back in holes where their arc
of fire was not more than 10 or 12 degrees." One of the artillery
battalions of the 15th Marines had the misfortune to lay their guns
directly within the narrow arc of a hidden 150mm cannon. "They lost two
howitzers before you could spell cat," said Krulak.
The battle of Yae Take became the 6th Marine
Division's first real fight, five days of difficult and deadly combat
against an exceptionally determined enemy. Both the 4th and 29th Marines
earned their spurs here, developing teamwork and tactics that would put
them in good stead during the long campaign ahead.
(click on image for an enlargement in a new window)
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Part of General Shepherd's success in this battle
stemmed from his desire to provide proven leaders in command of his
troops. On the 15th, Shepherd relieved Colonel Victor F. Bleasdale, a
well-decorated World War I Marine, to install Guadalcanal veteran
Colonel William J. Whaling as commanding officer of the 29th Marines.
When Japanese gunners killed Major Bernard W. Green, commanding the 1st
Battalion, 4th Marines, Colonel Shapley assigned his own executive
officer, Lieutenant Colonel Fred D. Beans, a former Marine raider, as
his replacement. The savage fighting continued, with three battalions
attacking from the west, two from the east protected against
friendly fire by the steep pinnacle between them. Logistic support to
the fighting became so critical that every man, from private to general,
who ascended the mountain to the front lines carried either a
five-gallon water can or a case of ammo. And all hands coming down the
mountain had to help bear stretchers of wounded Marines. On 15 April,
one company of the 2d Battalion, 4th Marines, suffered 65 casualties,
including three consecutive company commanders. On 16 April, two
companies of the 1st Battalion, 4th Marines, seized the topographic
crest. On the following day, the 29th Marines received exceptional fire
support from the 14-inch guns of the old battleship Tennessee and
low-level, in-your-pocket bombing from the Corsairs of Marine Fighter
Squadron 322.
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Uncovered on Motobu Peninsula, hidden in a cave, was
this Japanese 150mm gun waiting to be used against 6th Marine Division
troops advancing northwards. Department of Defense Photo (USMC)
122207
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Colonel Udo and his Kunigami Detachment died
to the man at Yae Take. On 20 April General Shepherd declared the Motobu
Peninsula secured. His division had earned a valuable victory, but the
cost had not been cheap. The 6th Marine Division suffered the loss of
207 killed and 757 wounded in the battle. The division's overall
performance impressed General Oliver P. Smith, who recorded in his
journal:
The campaign in the north should dispel the belief
held by some that Marines are beach-bound and are not capable of rapid
movement. Troops moved rapidly over rugged terrain, repaired roads and
blown bridges, successively opened new unloading points, and reached the
northern tip of the island, some 55 miles from the original landing
beaches, in 14 days. This was followed by a mountain campaign of 7 days
duration to clear the Motobu Peninsula.
During the battle for Motobu Peninsula, the 77th
Infantry Division once again displayed its amphibious prowess by landing
on the island of Ie Shima to seize its airfields. On 16 April, Major
Jones' force reconnaissance Marines again helped pave the way by seizing
Minna Shima, a tiny islet about 6,000 yards off shore from Ie Shima.
Here the soldiers positioned a 105mm battery to further support
operations ashore. The 77th needed plenty of fire support. Nearly 5,000
Japanese defended the island. The soldiers overwhelmed them in six days
of very hard fighting at a cost of 1,100 casualties. One of these was
the popular war correspondent Ernie Pyle, who had landed with the
Marines on L-Day. A Japanese Nambu gunner on Ie Shima shot Pyle
in the head, killing him instantly. Soldiers and Marines alike grieved
over Pyle's death, just as they had six days earlier with the news of
President Franklin D. Roosevelt's passing.
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Shortly after the main landings on Okinawa, famed war
correspondent Ernie Pyle, a Scripps-Howard columnist who had been in the
thick of the war in the Italian campaign, shares a smoke with a Marine
patrol. Later in Operation Iceberg he was killed by machine gun fire on
Ie Shima, a nearby island fortress. Department of Defense Photo (USMC)
116840
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The 1st Marine Division fought a different campaign
in April than their sister division to the north. Their days were filled
with processing refugees and their nights with patrols and ambushes.
Guerrillas and snipers exacted a small but steady toll. The 7th Marines
became engaged in a hot firefight near Hizaonna, but most of the action
remained small-unit and nocturnal. The "Old Breed" Marines welcomed the
cycle of low intensity. After so many months in the tropics, they found
Okinawa refreshingly cool and pastoral. The Marines grew concerned about
the welfare of the thousands of Okinawan refugees who straggled
northwards from the heavy fighting. As Private First Class Eugene Sledge
observed, "The most pitiful things about the Okinawan civilians were
that they were totally bewildered by the shock of our invasion, and they
were scared to death of us. Countless times they passed us on the way to
the rear with fear, dismay, and confusion on their faces."
Sledge and his companions in the 5th Marines could
tell by the sound of intense artillery fire to the south that the XXIV
Corps had collided with General Ushijima's outer defenses. Within the
first week the soldiers of the 7th and 96th Divisions had answered the
riddle of "where are the Japs?" By the second week, both General Hodge
and General Buckner were painfully aware of Ushijima's intentions and
the range and depth of his defensive positions. In addition to their
multitude of caves, minefields, and reverse-slope emplacements, the
Japanese in the Shuri complex featured the greatest number of
large-caliber weapons the Americans had ever faced in the Pacific. All
major positions enjoyed mutually supporting fires from adjacent and
interior hills and ridgelines, themselves honeycombed with caves and
fighting holes. Maintaining rigid adherence to these intricate networks
of mutually supporting positions required iron discipline on the part of
the Japanese troops. To the extent this discipline prevailed, the
Americans found themselves entering killing zones of savage
lethality.
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Within a short time after they came ashore, Marines
encountered native Okinawans. This group of elderly civilians is
escorted to the safety of a rear area by Marine PFC John F. Cassinelli,
a veteran 1st Marine Division military policeman. Department of Defense
Photo (USMC) 117288
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In typical fighting along this front, the Japanese
would contain and isolate an American penetration (Army or Marine) by
grazing fire from supporting positions, then smother the exposed troops
on top of the initial objective with a rain of preregistered heavy
mortar shells until fresh Japanese troops could swarm out of their
reverse-slope tunnels in a counterattack. Often the Japanese shot down
more Americans during their extraction from some fire-swept hilltop than
they did in the initial advance. These early U.S. assaults set the
pattern to be encountered for the duration of the campaign in the
south.
General Buckner quickly committed the 27th Infantry
Division to the southern front. He also directed General Geiger to loan
his corps artillery and the heretofore lightly committed 11th Marines to
beef up the fire support to XXIV Corps. This temporary assignment
provided four 155mm battalions, three 105mm battalions, and one residual
75mm pack howitzer battalion (1/11) to the general bombardment underway
of Ushijima's outer defenses. Lieutenant Colonel Frederick P. Henderson,
USMC, took command of a provisional field artillery group comprised of
the Marine 155mm gun battalions and an Army 8-inch howitzer battalion
the "Henderson Group" which provided massive fire support
to all elements of the Tenth Army.
Readjusting the front lines of XXIV Corps to allow
room for the 27th Division took time; so did building up adequate units
of fire for field artillery battalions to support the mammoth,
three-division offensive General Buckner wanted. A week of general
inactivity passed along the southern front, which inadvertently allowed
the Japanese to make their own adjustments and preparations for the
coming offensive. On 18 April (L plus 17) Buckner moved the command post
of the Tenth Army ashore. The offensive began the next morning, preceded
by the ungodliest preliminary bombardment of the ground war, a virtual
"typhoon of steel" delivered by 27 artillery batteries, 18 ships, and
650 aircraft. But the Japanese simply burrowed deeper into their
underground fortifications and waited for the infernal pounding to cease
and for American infantry to advance into their well-designed killing
traps.
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Two
Marines help an aged Okinawan to safety in the rear of the lines, as a
third Marine of the party carries the man's meager possessions. Only
children, women, and the aged and infirm were found and protected by
assaulting Marines as they pushed across the island during the first few
days following the 1 April landing. Department of Defense Photo (USMC)
116356
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The XXIV Corps executed the assault on 19 April with
great valor, made some gains, then were thrown back with heavy
casualties. The Japanese also exacted a heavy toll of U.S. tanks,
especially those supporting the 27th Infantry Division. In the fighting
around Kakazu Ridge, the Japanese had separated the tanks from their
supporting infantry by fire, then knocked off 22 of the 30 Shermans with
everything from 47mm guns to hand-delivered satchel charges.
The disastrous battle of 19 April provided an
essential dose of reality to the Tenth Army. The so-called "walk in the
sun" had ended. Overcoming the concentric Japanese defenses around Shuri
was going to require several divisions, massive firepower, and time
perhaps a very long time. Buckner needed immediate help along the
Machinato Kakazu lines. His operations officer requested General Geiger
to provide the 1st Tank Battalion to the 27th Division. Hearing this,
General del Valle became furious. "They can have my division," he
complained to Geiger, "but not piece-meal." Del Valle had other
concerns. Marine Corps tankers and infantry trained together as teams.
The 1st Marine Division had perfected tank-infantry offensive attacks in
the crucible of Peleliu. Committing the tanks to the Army without their
trained infantry squads could have proven disastrous.
Fortunately, Geiger and Oliver P. Smith made these
points clear to General Buckner. The Tenth Army commander agreed to
refrain from piece-meal commitments of the Marines. Instead, on 24
April, he re quested Geiger to designate one division as Tenth Army
Reserve and make one regiment in that division ready to move south in 12
hours. Geiger gave the mission to the 1st Marine Division; del Valle
alerted the 1st Marines to be ready to move south.
These decisions occurred while Buckner and his senior
Marines were still debating the possibility of opening a second front
with an amphibious landing on the Minatoga Beaches. But the continued
bloody fighting along the Shuri front received the forefront of
Buckner's attention. As his casualties grew alarmingly, Buckner decided
to concentrate all his resources on a single front. On 27 April he
assigned the 1st Marine Division to XXIV Corps. During the next three
days the division moved south to relieve the shot-up 27th Infantry
Division on the western (right) flank of the lines. The 6th Marine
Division received a warning order to prepare for a similar displacement
to the south. The long battle for Okinawa's southern highlands was
shifting into high gear.
Meanwhile, throughout April and with unprecedented
ferocity, the Japanese kamikazes had punished the ships of the
Fifth Fleet supporting the operation. So intense had the aerial battles
become that the western beaches, so beguilingly harmless on L-Day,
became positively deadly each night with the steady rain of shell
fragments from thousands of antiaircraft guns in the fleet. Ashore or
afloat, there were no safe havens in this protracted battle.
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