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USS North Carolina vs Bismarck
Operation Compass
Book Review: APc-48
Agent 110: An American Spymaster
Rudolf Hess/Tancred Borenius
Soviet Rifle Corps of WWII
The Morality of Okinawa
The First Class at RAF No. 31 Radio School
Operation Dragoon and Invasion of Southern France
Battle of Buna-Gona
The Silent Service and the Turkey Shoot
Published works on WWII OOB for land forces
Flying Tiger, Hidden Eagle
SAARF – Special Allied Airborne Recon Force
Force at la Difensa
Sabotaging Hitler’s Heavy Water
Soviet Offensive in the Arctic
The Failure of Strategic Bombing
Dutch Harbor: Unraveling of Japan’s Pacific Strategy
Ed Ramsey, 26th Cav Reg (Philippine Scouts)
US Army in Czechoslovakia '45: An Operational Overview
Strategic Culture of the IJN
Battles of Luneville: September 1944
Visual Guide to US Fleet Subs Pt 1
Lodge Act Soldier
The Fate of the Kido Butai
Air Recon in WWII
Turning East: Hitler's only option
Resupply Operations to Malta, 1942
WWII Veteran Interview
Why Arnhem?
Hell Ship - From the Philippines to Japan
The Battleship USS Oregon
US Army in Czechoslovakia '45 to '48
Jewish Resistance in WWII
Battle for Seaports
Banzai Attack on Attu
End of the Battle of the Java Sea
Texas National Guard in WWII
How Arnhem was Lost
Saga of Ormoc Bay
Silent Service of the Pacific
USS Wahoo
Polish Cavalry: A Military Myth Dispelled
Confucian Martial Culture
Operation Market Garden
Legacy of WWII Sub Veterans
Lausdell Crossroads
Kasserine Pass
Arnhem Startline
Bushido: Valor of Deceit
British Offensive Operations
Sir Winston Churchill
American Stubbornness at Rimling
The OSS in Greece
Strategy of Blitzkrieg
Breaking Seelow Heights
The Rape of Nanking
Small Battle: Big Implications
Harris Class APA's
Aerial Defense of East Indies
Why the Bulge Didn't Break
American Forces in WWII
Shadow Warriors
Battle of Surigao Strait
Panzer Brigades
Adolf Eichmann
Interview of a WWII Veteran
Failure and Destruction
Winter Warfare
Operation Rusty: The Gehlen-U.S. Army Connection
Was Hitler right to invade Russia?
Hitler, Germany's Worst General
Surface Actions of World War II
MacArthur's Failures in the Philippines
Japan's Monster Sub
Popski's Private Army
The Soviet Formula for Success
Japan's TA Operation
Hitler Youth: An Effective Organization
After Midway: The Fates of the Warships
Barbarossa: Strategic Miscalculation
The Story of a "Go Devil"
Long Range Desert Group
Island of Death
The Failure of Operation Barbarossa
The Liberation of Czechoslovakia 1945
Only the Admirals were Happy
Bicycle Blitzkrieg - Singapore
Good Grief Sir, We're in Trier!
Thermopylae, Balaklava and Kokoda
How Hitler Could Have Won
The Battle of Midway
Waffen SS - Birth of the Elite
Nomonhan and Okinawa
Der Bund Deutscher Mädel
Rulers of the World: Hitler Youth
Breakout From the Hedgerows
Memories of D-Day
Motivation of the Einsatzgruppen
Pearl Harbor and Midway
Amphibious Assaults during WWII
The 9th SS Panzer Division
The Warsaw Uprising
Sea Lion vs. Overlord
Maginot Line
Battle of Bastogne
Battle of the Barents Sea
Anzio: The Allies' Greatest Blunder
US Army in WWII
Battle of Mers-el-Kebir
Hitler's Ultra-Secret Adlerhorst
The Wilhelm Gustloff Disaster
The 88th Infantry in Italy

Larry Parker Articles
From Small Causes, Great Events Part 4
Alfred Thayer Mahan: Advocate for Seapower
From Small Causes, Great Events Part 3
From Small Causes, Great Events Part 2
Nomonhan, 1939 book review
The Fate of the Kido Butai
From Small Causes, Great Events Part 1
Urban Warfare Series
  StuIG at Stalingrad
  "A Time of Testing": Battle for Hue
  Battle of Mogadishu
Only the Admirals were Happy
What if?
Thermopylae, Balaklava and Kokoda
For Want of a Nail
Nomonhan and Okinawa
Pearl Harbor and Midway
Amphibious Assaults in WWII
Sealion vs. Overlord

Recommended Reading

At Dawn We Slept: The Untold Story of Pearl Harbor

Midway: The Battle that Doomed Japan, the Japanese Navy's Story

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In Bello Parvis Momentis Magni Casus Intercedunt
In Bello Parvis Momentis Magni Casus Intercedunt
by Larry Parker

In Bello Parvis Momentis Magni Casus Intercedunt
In war great events are the results of small causes.
Julius Caesar
Bellum Gallicum


History is replete with examples of Caesar's observation drawn from his experience in the Gallic Wars. While inspecting General Bank's army at Carrollton 04 September 1863 General Grant was given a large, nervous horse to ride for the pass in review ceremony. In his Personal Memoirs Grant recounts, "The horse I rode was vicious and but little used, and on my return to New Orleans ran away and, shying at a locomotive, fell, probably on me." Grant lay insensible in a nearby hotel for over a week and was on crutches for two months afterward. Imagine the American Civil War fought without Ulysses S. Grant, thrown from his horse and killed two months after the fall of Vicksburg. Consider the case of Premier Canovas of Spain, a strong leader whose policies might have suppressed the growing insurrection in Cuba. Assassinated in 1897 by Miguel Angiolillo, an obscure Italian anarchist long since forgotten to history, the Cuban rebellion escalated into the Spanish-American war one year later. San Juan Hill launched the career of Theodore Roosevelt who succeeded to the Presidency when yet another anarchist assassinated William McKinley. No Miguel Angiolillo, no Spanish-American war, no San Juan Hill, no Teddy Roosevelt presidency, no Bull Moose Party to split the Republican Party and, consequently, Woodrow Wilson loses in 1912, altering the course of World War I. Such are the fragile elements of chance, Caesar's 'small causes', which influence great events. These 'small causes' are one of the more intriguing aspects in the study of history. Given the scope of World War II such incidents are quite numerous, the ramifications particularly noteworthy and the implications especially interesting.


"I shall run wild considerably for the first six months or a year, but I have utterly no confidence for the second and third years."
Admiral Isoroku Yamamoto
Imperial Japanese Navy

Admiral Yamamoto's prediction proved remarkably prescient. Three days short of six months after Japan's incomplete but nonetheless stunning victory at Pearl Harbor the American navy decisively defeated the Imperial fleet at Midway. Phase One of the Pacific War, the Japanese Blitzkrieg, ended and Phase Two, the build up for an Allied counter offensive, began. At this point, when the fortunes of war turned, this paper will examine several seemingly insignificant incidents, which greatly influenced actions at Pearl Harbor, Midway and consequently, the war's eventual outcome.

Pearl Harbor, 07 December 1941

Fleet exercises conducted in 1928, 1932 and 1938 thoroughly demonstrated the vulnerability of Pearl Harbor to attack by carrier borne aircraft. Ignoring the results of those war games, disregarding repeated (albeit conflicting and confusing) warnings from Washington D. C., and displaying a remarkable lack of caution for a senior naval officer, Admiral Kimmel, Commander in Chief Pacific (CINCPAC) did nothing to ensure the security of the American Pacific fleet moored at Pearl Harbor. Misplacing his confidence in Lieutenant General Short, Commander Hawaiian Department, charged with the land and air defense of Hawaii and abrogating his responsibilities to Rear Admiral Bloch, Commandant of the 14th Naval District, tasked with the naval defense of Hawaii, Admiral Kimmel invited disaster upon the Pacific fleet. As a result of his inaction, as enemy planes approached, American sailors were complacently enjoying Condition Four, holiday routine on that notorious Sunday morning. Admiral Kimmel did, however, take steps to reinforce the garrisons at Wake Island and Midway. These actions, the first of many 'small causes' would alter the course of the Pacific war.

On 01 December Admiral Kimmel ordered a squadron of Marine fighter planes transported to Wake Island via USS Enterprise. These were followed on 05 December by another squadron embarked upon USS Lexington bound for Midway. By chance USS Saratoga was in port on the west coast as the 'day of infamy' dawned. Accordingly these three warships with their cruiser and destroyer escorts were spared the carnage visited upon the remainder of the Pacific fleet by Admiral Nagumo's first wave of 140 bombers and 50 fighters and second wave of 132 bombers and 81 fighters. The consequences of Admiral Kimmel's inaction are well documented. The results of his move to protect Wake Island and Midway are threefold:

• Overly concerned with the location of the American carriers Admiral Nagumo adamantly disapproved the third strike ardently requested by Commanders Fuchida and Genda. Such a strike against the fuel tank farms, repair facilities, sub pens and remaining surface ships would have truly crippled the American fleet setting back any possibility of a counter offensive for at least a year or more. Given additional time to prepare, the bloody island hopping campaigns of 1942 -1945 would have been even more costly in time, manpower and materiel. It is ironic Admiral Nagumo did not display the same concern for American carriers at Midway six months later.

• Prior to World War II many of America's senior admirals stubbornly clung to the unfulfilled promise of Jutland – decisive battle at sea whose outcome hung on weight of shell and depth of armor plate. The loss of America's battleships forced even her most hidebound admirals to accept and utilize the aircraft carrier as the dominant surface warship it truly was.

• War Plan Orange and its successor Rainbow 3 called for immediate relief of the Philippines by the navy in the event of a war with Japan. Charging into the guns of the Imperial fleet reinforced by carrier assets and supplemented by land based air support invited disaster worse than Pearl Harbor. The loss of America's battleships forced a revision of those war plans to suit remaining assets, namely the carriers Enterprise, Lexington and Saratoga . The resultant strategy was not only more prudent but also took advantage of America's overwhelming industrial superiority and proved more cost effective in the long term.

Midway, 04 June 1942

The Japanese were quick to exploit their tactical success at Pearl Harbor. Malaya, Hong Kong, the Philippines, the Dutch East Indies and Burma rapidly fell to combined army and navy forces in a Japanese blitzkrieg across the Pacific. At this point most Japanese admirals argued for a concerted push toward Port Moresby, Papua to complete the conquest of New Guinea, combined with a continued drive to Tulagi in the Solomon Islands to seize control of the Coral Sea region. Capture of these critical areas would isolate Australia and, quite possibly, lure the remnants of the American navy to its destruction leaving Hawaii, Midway and the Aleutian Islands vulnerable.

On 18 April 1942 American audacity changed everything. The Doolittle raid on Tokyo humiliated the Imperial Army and Navy causing grave loss of face. While tactically insignificant those sixteen B25 twin engine bombers flown from the aptly named carrier Hornet stung the Japanese psyche, and radically altering Japanese strategy, focused complete attention on Midway, the perceived weak link in the Empire's defensive perimeter.

Overriding all opposition with his tremendous prestige, Admiral Yamamoto pushed forward a convoluted plan calculated to finish the destruction of the American fleet begun at Pearl Harbor. Practically every unit in the Imperial fleet (sixteen submarines, seven aircraft carriers, eleven battleships, ten cruisers, sixty destroyers, eighteen troop transports, five seaplane carriers and four minesweepers) played a part in Yamamoto's master stratagem. Designed to deceive and confuse the Americans, luring her carriers into an enormous trap, Yamamoto's plan took into account every contingency except American intelligence capabilities, a daring counter move by Admiral Nimitz and the element of chance - what Clausewitz called the "friction" of war and others term fate or the fortunes of war. The primary objective, destruction of the American carriers, got lost as the grandiose scheme evolved. Disregarding the basic principles of war Yamamoto divided his enormous fleet into five separate forces. The Midway Occupation Force was further subdivided into five distinct groups. Sailing independently none of these forces or groups could adequately support the others. J. F. C. Fuller aptly describes Yamamoto's strategic concept with this analysis, "This plan was radically unsound and the distribution of forces was deplorable. Both were complex; the aim was confused and the principle of concentration ignored."

Even so, even taking into account the intelligence gathered through cryptographic analysis and subsequent American preparations, Yamamoto's Carrier Striking Force consisting of four aircraft carriers, two battleships, two cruisers and twelve destroyers under the command of Admiral Nagumo should have been more than a match for the American fleet lurking northwest of Midway. At this point in the war the United States could muster only three carriers, seven cruisers and fourteen destroyers for this crucial battle against the approaching Japanese armada.

At 0430 Nagumo's Carrier Striking Force turned into the wind, launching the first wave of fighters and bombers against Midway. Search planes from the carriers Akagi and Kaga as well as seaplanes from the battleship Haruna and the heavy cruisers Tone and Chikuma immediately followed seeking the American fleet. Completed in 1938 and 1939 respectively, Tone and Chikuma were Japan's latest, most modern cruiser design. Measuring 650 X 61 X 21 feet and displacing 15,200 tons, they carried eight 8-inch guns in four turrets forward, eight 5-inch guns in secondary batteries amidships, up to fifty-seven 25mm antiaircraft guns and twelve 24-inch torpedo tubes. Purpose built for scouting operations, the after decks were fitted with catapults, cranes and facilities for five seaplanes. Ideal reconnaissance platforms Tone and Chikuma were give the center lanes of the planned search pattern.

As it had at Pearl Harbor however, Caesar's 'small causes' intervened once again. The catapult aboard Tone malfunctioned delaying the launch of its aircraft until 0500. Engine trouble also prevented the Chikuma from launching her seaplane as scheduled. Its planned flight path would have taken it directly over the American carriers a scant 215 miles away but further engine trouble caused it to turn back early. Consequently it was not until 0820 that Nagumo received confirmation of the presence and location of the American carriers from Tone's aircraft. By then it was too late. American torpedo planes and dive-bombers were already inbound.

Although the American torpedo planes were ineffective, their near suicidal attack prevented the Japanese carriers from launching additional planes and drew fighter cover down to sea level setting up the Akagi, Kaga, Soryu and Hiryu for the follow on dive bombers. Poor operational planning by Yamamoto, engine trouble on the Chikuma's aircraft, a catapult malfunction onboard the Tone and a series of poor tactical decisions by Nagumo doomed the Japanese Carrier Strike Force. Decks crowded with planes, fuel and ordnance, the flagships of the Imperial Fleet were soon flaming wrecks. 300 miles astern with the main body consisting of three battleships, one carrier, two seaplane carriers and twelve destroyers Yamamoto could do nothing to avert or avenge the disaster.

In exchange for the carrier Yorktown and the destroyer Hammann American forces sank all four carriers of Nagumo's Striking Force as well as the heavy cruiser Mikuma. Badly damaged, the cruiser Mogami spent the next year in Truk undergoing repairs. More importantly the Japanese lost their best naval pilots and most experienced aircrews. This was a loss from which they would never recover. Midway ended the Japanese threat to Hawaii and Australia. The initiative in the Pacific now passed to the Allies and was never seriously challenged again.


Thanks to a series of events, great and small, six months after Pearl Harbor the United States Navy devastated the Imperial Fleet at Midway halting Japanese expansion and restoring the balance of power in the Pacific. To drive the fanatical and tenacious Japanese back to the Home Islands required another three years of bloody combat under some of the worst conditions in military history. After Midway however, the issue was never really in doubt.

* * *

Copyright © 2005 Larry Parker

Written by Larry Parker. If you have questions or comments on this article, please contact Larry Parker at:

About the Author:
Lieutenant Commander Larry Parker, United States Navy, served as a Surface Warfare Officer, with afloat tours onboard USS De Wert (FFG-45) as Ordnance & Fire Control Officer, USS Portland (LSD-37) as First Lieutenant, and USS Butte (AE-27) as Operations Officer. Rotations ashore included Navy Reserve Center Cheyenne, Navy & Marine Corps Reserve Center Denver and Navy Reserve Readiness Command Region 16 Minneapolis. He retired in July 2000 and taught Navy Junior ROTC until June 2011. LCDR Parker holds a Bachelor's degree in English and History from the University of Kansas and a Master's degree in Military Studies - Land Warfare from American Military University. In his free time LCDR Parker pursues a lifelong passion for military history. His articles are the result of extensive research and personal experience in surface warfare, fleet logistics and amphibious operations.

Published online: 05/01/2005.
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