The subject of this thread is "The Forgotten and Buried Intelligence Lessons of Pearl Harbor, December 7th, 1941."

It is both a 2019 column of mine on the Chicagoboyz blog & an enduring lesson for today.

chicagoboyz.net/archives/61235…
1/
The successful surprise Kido Butai carrier fleet movement to Pearl Harbor was the result of a sophisticated the denial and deception measures to blind allied signals intelligence as to their movements.
2/
A deceptive movement that worked thanks to the hard work & diligence of both Adm Isoroku Yamamoto's staff planners as well as pre-war Japanese intelligence.

The IJN played the US Pacific Fleet's operational tendencies like a harp.

3/
American elite political and military leaders of that era collective swore of “Never Again.”

That is, “Never again will the USA be so surprised by a foreign enemy.”

4/
Yet despite that, America has indeed been “surprised” in exactly the way of Pearl Harbor repeatedly since 1941. The Korean war is one example five years after WW2 ended. The Soviet Invasions of both Czechoslovakia and Afghanistan in 1968 and 1979 are two others

5/
It was certainly an intelligence surprise on 9/11/2001 with the attacks on the World Trade Center in NY City and the Pentagon in Washington D.C., the “surprise” of there being few/no WMD in post 2003 Iraq, the drone-missile attack on Saudi Arabian oil refining facilities,

6/
the recent fall of Kabul to the Taliban, and now China's orbital hypersonic glide vehicle weapon are all "Strategic Intelligence Surprises by Foreign enemies."

7/
The standard histographic answer for these failures is Racism, or the term "Ethnocentric," which both includes the old Soviet Union and lets current US Politico-Military elites virtue signal they are not those old schlubs.

(Please ignore Kabul & Chinese HGV intel failures).

8/
The dominant historiography of American intelligence failures before Pearl Harbor blames the racism of American (and British) military intelligence officers, Flag Rank military officers and elected political leaders for missing the arrival of Imperial Japan as a military

9/
“peer competitor”in the late 1930’s…until the the reality of torpedoes of the Kido Butai arrived in the hulls of the Pacific Fleet’s battle line. This historiography’s apogee was reached with John Dower’s 1986 book War without Mercy: Race and Power in the Pacific War.
10/
I’ve always cast a gimlet eye on this “Racism was the sole cause” historiography as being an easy & far too simplistic approach that does a disservice to both history & the the people involved. Yes racism played a role. But to say it was the _Sole Reason_ for Intelligence
11/
failure denies the Imperial Japanese & other US enemies agency. Which is another form of racism, when you think about it.

The competence of the Imperial Japanese military and state had a whole lot to do with their success at Pearl Harbor, and everywhere else, until
12/
the Battle of Midway and the Guadalcanal campaign.

In short: The Enemy gets a vote.

That’s why they are called “The Enemy.”

13/
So, if Racism was neither the sole nor the primary cause of American intelligence failures of that time. You have to ask the question:

“What did American intelligence know about the Japanese, when did it know it, and why did it get so much wrong by Dec 6th 1941?”

14/
There is a historiography doing just that. In chronological order see the following articles of this emerging historiography:

Ralph Lee Defalco III “Blind to the Sun: U.S. Intelligence Failures Before the War with Japan” (2003), tandfonline.com/doi/abs/10.108…
15/
R.J. Hanyok’s “Blinded by the Rising Sun: Japanese Radio Deception Before Pearl Harbor” (2006), historynet.com/blinded-by-the…

16/
R.J. Hanyok’s “Catching the Fox Unaware”—Japanese Radio Denial and Deception and the Attack on Pearl Harbor” (2008) ibiblio.org/pha/myths/Japa…

17/
R.J. Hanyok’s “How the Japanese Did It” (2009), usni.org/magazines/nava…

18/
Bob Bergin’s “Claire Lee Chennault and the Problem of Intelligence in China,” Studies in Intelligence (2010), cia.gov/static/94bf6ca…

19/
Justin Pike’s (@CBI_PTO_History) "Blinded by the Rising Sun? American Intelligence Assessments of Japanese Air Power, 1920-41”
serialized in three parts on the Balloon’s to Drones web site in August and September 2017 balloonstodrones.com/2017/08/24/bli…

20/
Defalco’s and Bergin’s works cover the sole American who got it right about Imperial Japanese air power pre-WW2 — including the capabilities of the A6M Mitsubishi Zero fighter — then retired captain and future USAAF General Claire Chennault.
21/
General Chennault’s memoir “Way of a Fighter” makes clear he was as much a racist towards the Japanese as any other US officer of his times…yet he was also right about their aerial war making capabilities when everyone else in American pre-war intelligence was wrong.
22/
Defalco and Bergin explain why that was.

Hanyok’s works are on how Imperial Japanese naval intelligence determined what Anglo-American signals intelligence capabilities were.

How the IJN planned the denial and deception measures to blind them as to the movements
23/
of their Kido Butai carrier fleet and how well they executed that plan up to Pearl harbor.

Taken together, they paint a picture of Imperial Japan as a fell “high tech” foe, an enemy fully versed in the latest in electronic intelligence…and the means to deceive it.
24/
Pike’s serialized work does a forensic analysis of classified American intelligence on the Japanese from the end of World War I to the beginning of World War II. Pike finds little if any outright racism. What he does find is that American intelligence was highly accurate in
25/
...the 1920’s to early 1930’s, when the Imperial Japanese allowed open access to their society.

This is how he closed part one of his series:
26/
When the Imperial Japanese Military closed that access in the early-1930’s due to the war in China. American intelligence work increasingly diverged from the changing Japanese reality and started filling the lack of intelligence with regurgitated open source articles
26/
that repeated the 1920’s tropes of lack of originality in design and backwardness in tactics and equipment.

Tropes that live on today regards the Western WW2 histories of the Imperial Japanese war efforts.

27/
The problem regards Pearl Harbor and all the other "intelligence failures" since Dec. 7, 1941 wasn't racism.

It was another "-ism"

Clientelism

28/
en.wikipedia.org/wiki/Clienteli…
Clientelism is the one-word description of patron-client relationships whose synonyms include words like patronage, cronyism and corruption.

It is the corrupt patron-client relationship between US Elites & its intelligence leaders which is where these failures dwell.
29/
The terms “Military-Industrial Complex” or “Iron Triangle” have grown up since Pearl Harbor to describe the aligned interests of elected civil, military, intelligence and other federal bureaucratic elites in the Federal Government who are patrons of government largess.
30/
It wasn’t until Samuel Huntington’s book "The Soldier and the State – the Theory and Politics of Civil-Military Relations" in 1957 that “Civil-Military Relations” describing these relationships in academic terms was written.
31/
archive.org/details/soldie…
And it wasn’t until Amy Zegart’s 2000 book "Flawed by Design: The Evolution of the CIA, JCS, and NSC" that how these various elites operated in creating the intelligence community that simply can’t ever do it’s post-Pearl Harbor job of making sure of “Never Again.”
32/
This is how Amy Zegart's book cover put it before 9/11/2001:
33/
Unfortunately Amy Zegart was wrong about the NSC escaping Clientelism.

The Iraqi WMD debacle after the 2003 invasion saw to that and for the same reasons US intelligence failed at Pearl Harbor.

34/
What Amy Zegart & nearly every other academic has missed is a structural weakness of the American state in the face of totalitarianism or authoritarianism.

Both can do decades long deception & denial campaign that allows the soft corruption of US Clientelism to grow
35/
Both the NSC with Iraqi WMD's & US intelligence on Japan before Pearl Harbor saw the weight of old and incorrect “conventional wisdom” grow so large that saying anything else became threat to an intelligence officer’s opportunities for advancement.
36/
Thus, by 1937, when the Imperial Japanese were making truly original and innovative aircraft a generation past anything they previously copied.

American military intelligence officers simply could not go there. 37/
Bucking the “conventional wisdom” — group think — was too professionally dangerous given the decade and a half of ingrained & by then horrid intelligence reports that had become belief system and budgets of the flag rank/political patrons above them.
38/
This is how Bob Bergin put it regards Chennault’s bumping conventional wisdom group think in his “Claire Lee Chennault and the Problem of Intelligence in China” –

39/
The inability of 1930’s American military intelligence to digest valid intelligence data against the conventional wisdom of elites are all too familiar to students of the 2003 Iraqi WMD debacle.
40/
In a real sense the lessons of the surprise of Pearl Harbor or 2003 Iraqi WMD debacle were buried because they are too painful to learn.

There is no political reform that will fix the clientelism in the structure of the American state which existed in 1941, in 2003 or now
/End

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More from @TrentTelenko

9 Dec
@Vausterlitz1 It was not a "dumb" question.

It is just one that has not been well answered.

On 11 January 1942, the IJA completed a study on whether Hawaii could be successfully invaded and, if it could, what would be needed to retain the islands.
@Vausterlitz1 They concluded:

Yes, we can capture it, but supplying would be very hard due to shipping tonnage shortages.

Namely, food to feed 500,000 Americans plus the Japanese Garrison would have to be carried across 4,000 miles of ocean;
@Vausterlitz1 because these were the breakdowns by food grown on Hawaii for consumption:

fruit (84%)
rice (10%)
dairy products (28%)
fish (30%)
eggs (40%)
meat (41%)
vegetables (46%)

The IJA officer noted that 2.9 million tons of supplies had been sent by the US to Hawaii during 1941; or
Read 7 tweets
8 Dec
"MacArthur's Pearl Harbor" AKA the Dec 8, 1941 destruction of FEAF air power at Clarke Field is the subject of this thread.

(Photo: Destroyed P-35 fighters on Clark Field)
1/
One of the important things to know about General Douglas MacArthur was that almost nothing said or written about him can be trusted without extensive research to validate its truthfulness.

There were a lot of reasons for this. The biggest being that if the Clinton era
2/
political concept of “The Politics of Personal Destruction” had been around in the 1930s through 1950s, Gen. MacArthur’s face would have been its poster boy.

Everything he did was personal & that made everything everyone else did in opposition to him “personal” to them. Thus

3/
Read 23 tweets
9 Nov
The issues that @fortisanalysis founder, @man_integrated spoke about recently piece on why the USA may never recover from the current supply chain disruptions have a historical analog in WW2 military supply chains.

That will be this thread's subject
1/
Intercontinental logistics is never easy. Even more so when there is a thinking enemy of the other side shooting holes in them.

Yet for all that, the US never got the single most important piece right the clearing cargo through ports & beaches.

See the WW2 D-Day example.
2/ ImageImage
In the Pacific theaters, it was far worse.

The tyranny of distance, no/poor infrastructure, bureaucracy, and inter-service politics were bigger foes than the Japanese.

3/ ImageImageImageImage
Read 30 tweets
30 Oct
CASEY HANDMER'S BLOG has a hugely important piece on Starship. If a space firm misunderstands this passage:

"A dollar spent on mass optimization no longer buys a dollar saved on launch cost. It buys nothing."

It's doomed

caseyhandmer.wordpress.com/2021/10/28/sta…
His blog's comparison of NASA's SLS based Artemis architecture versus a Lunar program based on Starship makes the point.

This is a phase change difference in access to space akin from the X-Atlantic air travel jump from Charles Lindberg to the wide body jet in 5-years.
2/
For the logistical types, these are your current price points:

$100,000/kg for LEO bulk cargo
$1,000,000/kg(+) for deep space exploration.

Starship will do 100 ton (+) chunks for <$10m per launch.

It will be launching several hundred times a year w/in 5-years.
3/
Read 12 tweets
30 Oct
@man_integrated >>Measured by American manufacturing output (given the constraints) during a crisis, I'd say FDR wins in a walk.

Just...no.

FDR did hugely destructive things to the US mobilization with hugely unrealistic production goals in aircraft & tanks that took until 1943 to unsnarl.
1/
@man_integrated In creating this logistical dysfunction he was hugely aided by the US Army war mobilization plan.

Jim Lacey's "Keep From All Thoughtful Men - How U.S. Economists Won World War II" deals with a lot of this FDR Administration dysfunction.
2/
@man_integrated There is a more granular feel is how the FDR's unrealistic goals whipsawed A/C procurement in this Green book:

UNITED STATES ARMY IN WORLD WAR II
Special Studies
BUYING AIRCRAFT: MATERIEL
PROCUREMENT FOR THE
ARMY AIR FORCES
by
Irving Brinton Holley, ir.
history.army.mil/html/books/011… Image
Read 5 tweets
27 Oct
@adachi_austin_ Wikipedia has a useful article on the Jan 28th incident.

It certainly seems to explain the acceleration of IJN aviation technical development by then Rear Admiral Yamamoto. Who served as chief of the Technological Division of the Naval Air Corps
1929-1934
@adachi_austin_ The IJN adapted a US Fairchild radio compass in its A5M Claude, H6K Mavis and "Rikko" Type 96 land-based attack aircraft the Mitsubishi G3M designs.

Radio beacons associated with the Fairchild radio compass were deployed through out the Empire no later than 1937.
@adachi_austin_ The radio beacons were associated with a map grid system applied around Japanese home islands and possessions.

The Western Allies were unaware of the extent of this grid mapping until the Marianas were over run in the Summer of 1944. This grid network was ~decade old by then.
Read 6 tweets

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