operation downfall

All posts tagged operation downfall

[The invasion start found Tuttle in a busy radio room, catching action all around Kyushu from a unique perspective.]

I found one of the radio men, Ensign Gaston Morton, from Stillwater, Minnesota, studiously memorizing the lists of ships from our invasion flotilla and every other squadron and fleet on this job. “There’s a slim chance I would ever need to relay a call for a destroyer on the far side [of Kyushu], and I could look them up in a minute anyway. But the only other thing I could do right now is clean and polish the vacuum tubes on the radio sets. What about you? What do you do when you’re waiting around to start an important job?”

I’m not used to my interview subjects asking back! I told him that, first of all, I don’t recall ever having a particularly important job to do. But if I did, to pass the time waiting for such a job to start, I would probably go interview someone else about his job.

There was very little time left to pass, so Mr. Morris got back to his radio set and I got back to staying out of the way. About 5 am the pre-landing bombardment kicked off, starting with the very big guns. Our shelling of the shore in the previous three days had been done during daylight. Each ship could fix its position by visual cues on land, then work accurately through its scheduled target list. Tonight the moon had set just after midnight. The pre-landing bombardment was done in pitch darkness. It was just a rolling line of thunder with no particular target except the island ahead of us.

I went back and forth between watching the action outside and listening in on radio traffic. Layered groups of fighter planes could be seen weaving a curtain to the north. Boats and amphibious transports were loaded and launched toward control lines throughout the bombardment. The other landing armies were going through the same routine at the same time. Across the island on the eastern shore they were landing on either side of the port city Miyazaki, a straight bit of coastline similar to our objective here around the town of Kushikino. In the southeast they are landing on an ideal bit of long gentle shoreline, inside Ariake Bay. But, the sides of the bay are solid lines of steep bluffs and mountain peaks.

The first serious trouble came from Ariake Bay. Over the sound of our big battleships firing in front of us, my friend Mr. Morris tuned in the Navy frequencies for the bombardment group in Ariake. The pre-invasion bombardment did not have Navy gunships enter the bay until this morning. Army bombers laid several thousands of pounds of bombs per acre all around Ariake that morning, a repeat of what they’d done three days in a row at all the invasion sites.

In a surprising development, the Navy gunships found themselves in a shooting duel with land based guns which were not hit in the earlier bombing, and which chose to reveal themselves today. Calls went out for return fire on each new enemy gun. We see the flash, in the shadows. Target square 99-11, grid S! might be one call. Mr. Morris helped me find a few of them on a copy of the same map.

The Navy had help from ground-attack aircraft under a clear sky, but still lost a cruiser and a destroyer sunk, and other ships damaged. Some number of airplanes were also lost. They had to fly low over enemy held land to make rocket attacks on the back sides of hills.

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail

[Not a field report, but included in Kyushu Diary, Tuttle gave readers an overview of the American battle plan.]

The primary focus of operations at the end of 1945 was to get as many troops as available onto Kyushu before winter set in. The troops available would be all the Army divisions MacArthur had used in the Philippines, and whichever Marine corps divisions were not heavily involved on Okinawa, the most recent operation.

Four multi-division army corps were set up, under a general command called the Sixth Army under General Walter Krueger. Planning staffs had labeled over 30 possible landing beaches on the southern third of Kyushu, naming them in alphabetical order from east to west by automobile brands. The final plan had us using eight of them in three clusters for the X-day assault.

The Marine Corps sent its 2nd, 3rd, and 5th divisions as the Fifth Amphibious Corps. They would land on the west coast, south of the city of Sendai. The First Corps, Army divisions 25th, 33rd, and 41st, would land on the east coast, either side of the city of Miyazaki.

South of that in Ariake Bay the 1st Cavalry Division, 43rd Infantry Division, and the Americal Division would land as the Eleventh Corps. Another corps, the Ninth, on X-2 has already made an elaborate fake landing operation toward Shikoku far to the northeast. Its 77th, 81st, and 98th infantry divisions can land as needed later. They are penciled in for a landing south of the Marines on X+3 or X+4. Ninth Corps also had the 112th “Regimental Combat Team” , which could deploy independently. Incidentally, the 98th is an all new unit, the only one here with no combat experience.

Ahead of the multiple corps, the 40th Infantry Division, reinforced with the 158th Regimental Combat Team, started landing on the smaller islands south and west of Kyushu, to eliminate them as threats to the main fleet once it arrived.

What we need out of Kyushu most of all is airbases. You may have noticed, B-29 bombers are not small. They need room to stretch out those long wings, and they prefer wide long runways. In addition, there are supply depots and workshops and barracks for a million men (or more) to build. But Kyushu does not have an abundance of flat land to offer. It is woven from a coarse thread of steep ridges and volcanic peaks, interrupted only briefly by flat valleys and a few small plains. To get enough space for our uses, and secure it from Japanese long range artillery or sneak attack, we plan to push well into the hills north of the last set of valleys.

As a layman looking at all this, the invasion plan at first looked like a focused application of awesome force, and it was impossible to see how such a large and well equipped invader could be turned away. But I had been at this a little while by then, and I did a little calculating. I’m sure real staff officers in many headquarters and Pentagon offices had run the same numbers many times.

Okinawa is about 5 miles across in its southern portion where we had four divisions abreast fighting stiff resistance for two months to advance about 15 miles, taking casualties all the way. Southern Kyushu is 90 miles wide, and we plan to land maybe 13 divisions. That would spread forces out almost six times as thin. Total area to be taken is well over 5,000 square miles. They talk about having ‘maneuver room’ and ‘flexible force concentration’ to overcome this. Time will tell.

Planned hospital beds for evac casualties from Operation Olympic

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail

[Tuttle got a break from the overcrowding on the transport ship, conversing with what turned out to be the only woman on board.]

The evening sun was almost on the water. Its direct and reflected light put a studio-grade golden light upon her calm face. Mrs. Cyrille Simms was a club singer in St. Louis before the war, while working her way through school. She volunteered to me being 24 when the war started. She finally signed up just a year or so ago, got her military training, tended maimed soldiers in Hawaii for a while, and was here for her first big live shootout.

With over 1500 men on this ship, doing everything from hauling equipment around to nervous pacing on dark decks, there was a likely need for medical attention in the week long span we could be embarked. Once all the men from our ship were ashore, she would go after them to a division field hospital, or transfer to a hospital ship if needed. Either location was expected to be busy.

She spoke idly about her adventures so far, while staring out over the sea toward a blank spot north of the setting sun. I heard tales of woe and loss, senseless loss, which if they had affected her she wasn’t letting on. She was here to do a job, ready to see it through, and as matter-of-fact about it as the most hardened master sergeant.

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail

[Tuttle explains the name “X-Day” and bemoans the popular presumptions around “D-Day”.]

We are in Fifth Corps (amphibious), with three Marine divisions, the 2nd, 3rd, and 5th. Two other similar size corps, Eleventh and First, will assault the island elsewhere. The augmented 40th Infantry Division is already ahead of us landing on some of the smaller islands off Kyushu. Another whole corps, the Ninth, is staging a feint far to the northeast, and there are an ‘unspecified number of follow-on units.’

So far as I am told, until recently it was U.S. military practice to always call the day of an invasion, amphibious or otherwise, “D-day.” (They also call the hour that it starts “H-hour.”) Something changed in the last year, now that “D-day” has become something of a brand name.
Newspapers take D-Day to mean specifically the June, 1944 expansion of the war against Germany with landings on the Normandy coast of France. They already forget about the other fights which raged even then in all corners of Europe.

If they do that much in a year, I have to wonder what people will be told of this war fifty years from now. There might be just one D-day, which decided the whole fight in Europe. Never mind the massive land war in Russia, the back-and-forth turf wars in north Africa, or the painful struggle through Italy. In a hundred years they may just call it “The D-Day War” .

Anyway, since Normandy and “D-Day” are forever linked in the public mind, the military had to get more creative. For the invasion of Luzon in the Philippines they called it “S-day.” At Okinawa, April 1st, which happened to also be Easter Sunday, was called “Love Day,” much to the chagrin of superstitious or wry-witted soldiers and Marines who saw the setup of a bemusing but possibly bitter irony.

This time around our invasion of the island of Kyushu, set for November 15th, 1945, will begin on “X-day.” That makes today X-4. I for one am glad we are back to a simple single letter.

Operation Olympic - X-Day

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail

[Tuttle is away with the invasion flotilla, surveying conditions on their temporary floating home.]

The Barrow is a purely military ship, but actually more comfortable than some of the hurriedly converted passenger liners that were used as transports early in the war. A space that has bunks for a hundred men actually has ventilation for a hundred men, unlike the converted cargo holds of the civilian ships. The mess halls can take a steady stream of hungry servicemen at long rows of benches. Even the toilets are a production line affair – a relief to a nervous row of men all trying to relieve themselves at the same time before boarding assault boats.

One thing that hasn’t changed with the new ships is that troop ships are still over loaded. High-level planning documents show an allowance of 33,000 men for each combat division. The current T/O for a Marine Corps division has it at 19,176 men, fully staffed. The quantity of men and supplies attached to an assault division grows with every operation, as they learn about new needs. It never goes down, and the increasing distance from US home ports only multiplies the problem.

Since the Navy can’t just stretch each ship to match new paper requirements, there are still men assigned “quarters” that are nothing more than a bit of shade under an assault boat up on deck. They get a good view of the sky at night, but will trade favors for a dry place to stick their butts and gear when rain comes.

Top man in our room is Marine Captain Gerald Holtom, from central California. He is one of the Japanese interpreters. He tells me they don’t expect to be very busy. “The average rate of surrender or capture of Japanese troops at last count is barely one percent. It might have been better in the last surrounded pockets on Okinawa or Luzon*, but those dumb guys had been in combat under shelling for literally months and had no other hope of survival, or even of doing any damage.

“As it was we went hole-by-hole back over every square inch of Oki after it was ‘secure’ and it was hit or miss when we found Japs holed up if we could talk them out. If not we would just blow the thing shut and bury them alive.” Holtom will go ashore not long after the initial assault. He isn’t looking forward to the job ahead, but he’s sure his part is both small and a good ways out in the future.

* It was; about 5% on Okinawa and 2.5% on Luzon.

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail

[Loading for the invasion began, beset by troubles with coordination of the effort which had been hastily re-scheduled after Typhoon Louise.]

We passed columns of Army soldiers marching several miles to board ships in Buckner Bay. No one knows for sure why troops weren’t all loaded near their own camps, but plenty of possible reasons were offered. Profanities added color to many of the suggestions.

Upon reaching the designated staging area, for most units the wait was on. Some piers still had cargo ships along side where assault transports were supposed to load. A few transports got moved to whatever free pier was open, and more marching ensued. My group waited, most men sitting on packs or laying out on the ground, until after dark.

Finally word came that we wouldn’t load that day, but we weren’t to go very far away. We were to be ready as soon as our ship came in. A few pup tents went up, and a couple guys scrounged wood for fires to sit around. Most men slept under the stars through the warm evening.

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail

Today we conclude this series of specific references behind the details in X-Day: Japan. These are not formal citations, as they are not all root sources and the book is not an academic volume. The use of real historical elements for X-Day: Japan serves to educate the reader about the time, add interest to the story, and honestly it just made the thing easier to write!

November 23, 1945
Jumbo air-to-ground rocket,
airandspace.si.edu

November 27, 1945
1st Cavalry Division,
first-team.us

December 3, 1945
M29 Weasel,
m29cweasel.com

December 8, 1945
M26 Pershing tank next to M4 Sherman tank (models),
warbird-photos.com

December 9, 1945
War Department Technical Manual TM-12-247,
Military Occupational Classification of Enlisted Personnel,
archive.org

December 10, 1945
U.S. Army Center of Military History style guide,
history.army.mil

December 11, 1945
Battle Formations – The Rifle Platoon, for NCOs (1942)
youtube.com

December 21, 1945
Hospitalization and evac plan for Operation Olympic,
Logistic Instructions No. 1 for the Olympic Operation, 25 July 1945
cgsc.cdmhost.com
USS Sanctuary, hospital ship AH-17
navsource.org

December 22, 1945
Russian communists vs Chinese communists,
– Tom Clancy, The Bear and the Dragon
Chiang Kai-shek quote on the communists vs the Japanese,
izquotes.com

December 23, 1945
Sakura-jima and its volcanoes,
photovolcanica.com

December 25, 1945
USS Hazard, minesweeper AM-240 [MUSEUM SHIP],
nps.gov
tripadvisor.com

January 17, 1946
Radiation detection equipment,
national-radiation-instrument-catalog.com

July 18, 1945
PBY-4/5 Catalina flying boat,
pwencycl.kgbudge.com
Consolidated Aircraft plant in San Diego,
sandiegohistory.org
Consolidated Aircraft plant production and products, B-24 and PB4Y-2,
legendsintheirowntime.com
wikipedia.org

December 24, 1945
Pearl Harbor survivors, trapped under USS West Virginia,
nps.gov
community.seattletimes.nwsource.com

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail

[Killing time was a popular past time in the weeks before the invasion. There would be plenty of time for killing later.]

I have been spending my time lately with the newly arrived 5th Marine Division. They actually did come ashore in a mock invasion, driving AMTRACs ashore and hauling in a lot of gear. It took a lot of time to repack everything, but the only other thing they have to do is wait for the actual invasion.

A card game broke out last night in one of the enlisted barracks. That happens most nights anyway, but this one had very little to do with gambling. I was sitting in, mostly minding my ante, not wanting to take anyone’s money but not wanting this bit of material to be too expensive (Editors are not fond of reimbursing wagers!).

The guys needed to pass the time thinking about something other than the impending unknown. We still didn’t even know when we were going, nobody did. We had a good guess where, though, and talked about everything but that. Still, people will drift back to what they have in common, and this group from all over a dozen states had only two things in common – the United States Marine Corps and whatever adventure it ordered them on next.

Finally a readily agitated private from Detroit, Dante Iacoboni, spoke up. “They say the Japs spent eight or ten months, twelve tops, digging in around here {Okinawa}. It cost us three months and a giant ass-kicking to kick them out of this [expletive]. How long you think they’ve had to dig in on Japan proper?”

After a pause another veteran Detroiter, Sergeant Ora Inman, answered him quietly. “About a thousand years.”

The senior man on the deck, Sergeant William Barnard, wasn’t even playing, as he fastidiously tended his gear, like he did every evening. But he was listening and spoke up right away.

“Listen up fellahs. I’m not supposed to say anything, but the word is that there’s a ‘surprise’ inspection tomorrow morning. Don’t tell ‘em I said so, but you might want to call it a night here and square away your gear now.”

The players agreed readily that they’d had enough cards anyway. They had a quick round of the usual arguing about who had cheated using the markings on the well-worn deck and went to their respective barracks and tents.

There was no inspection today.

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail

[The whole island prepared for the Fifth Marine Division to arrive, and Tuttle helped out.]

I pitched in on the effort a few of the advance party Marines were making to prep for their buddies. Lieutenant Paul Bernard, Sergeant Thurman Price, Jr., and Corporal Francis Seeley were detached from the motor transport battalion to come here early. Their planning work was long done, so now the job was housing the unit until the final launching date. I wasn’t obligated to offer up my labor, but I wanted to hear what they thought about the move. Tent ropes were drawn tight as the conversation got loose.

Corporal Seeley says he’s been keeping up a tide chart, and watching the moon. He used to sail some off Baja California, the nearest ocean surf to Tucson, Arizona. Near the end of this month would have been perfect he says – high tide in the morning coupled with good moonlight most of the night. We could get ashore easiest and then have light to catch the infamous Japanese nighttime infiltration attacks. He saw the aftermath from many of those on Iwo Jima.

Since he spoke like he knew what he was talking about, we let him talk. He thinks the next decent chance isn’t until mid-November. We would only have the counter-moon tide and less moonlight, but otherwise it’s another three weeks before everything comes around perfect again.

I couldn’t argue with the logic, but I offered up what I knew about the losses our Navy took, and wondered aloud how that might affect things. Many destroyers were banged up or grounded in the storm, but there doesn’t seem to be any shortage of them. We are down three big carriers, which may be back in time, and at least two small carriers which will not. The big gun ships mostly did ok, riding out the storm at sea. But the flat bottom assault boats got roughed up bad. They don’t have any good handling abilities in any rough seas. Eight of them are still unaccounted for, presumed lost. With the thirty-six large and hundred-some small transport ships wrecked or put into drydock here in Buckner Bay, that’s over two divisions worth of boats gone. These Marines didn’t seem too worried about it.

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail

[After helping to stabilize his own camp, Tuttle moved around Okinawa to see what damage Typhoon Louise had done to the rest of the preparations for Operation Olympic.]

Buckner Bay is the new home to several dozen naval monuments. For example, some 50 yards in from the normal waterline sits a full size model of an American Sumner-class destroyer. I am sure it is full size, because it is the actual USS Laffey, DD-724. I found the Laffey with her bow pointed out to sea, and her stern jammed deep into the earth. She was leaned over a few degrees to port. The skin of her starboard side showed a long deep wrinkle, running vertically from mid height right down to the keel…

…other less lucky ships line the beach and shallows. I quit counting at forty-something, with a long way to go. Some are capsized, others broken apart. Anonymous debris thoroughly litters the beach. I picked through some of it, trying to guess what any of it used to be. I stopped to find someone to tell about a body that graves registration hadn’t found yet.

No planes are flying from here. Zero. I can’t say how many planes we have here, but ‘hundreds’ does not cover it. Runways are being cleared of debris, but every single aircraft is grounded until each is inspected for damage. So far every bird has failed inspection, and they are cued up for work ranging from skin patches to engine swaps to outright scrapping.

A plane engine can be heard overhead periodically. I’m told we are flying limited CAP with long range fighters from elsewhere, just in case the Japs try to take advantage of our situation. I can’t imagine what they would find worth bombing.

Facebooktwitter
Facebooktwitterredditpinterestlinkedintumblrmail