While the U.S. submarine force in the Pacific is credited with sinking one Japanese super aircraft carrier, two fleet carriers, two escort carriers, four heavy cruisers and other combatants. Their role as a naval combatant against Japanese fleet units was always going to be limited: aircraft carriers had a speed of 28-40 knots; a submerged WWII submarine could make only 3-4 running her engines on battery power. The real contribution of the submarine force was against merchant shipping. By the end of the war, U.S. submarines had sunk approximately 50% of all Japanese merchant shipping.
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This day in history…
War in the Pacific – the early months
While perhaps familiar to many of the readers, it might be useful to offer a brief summary of the early months of the War in the Pacific. In a modification of Japan’s war plan, Kantai Kessen, on December 7, 1941, Japan launched a surprise and devastating attack on the U.S. Fleet at Pearl Harbor, Hawaii. The goal was the decisive battle that would neutralize the U.S. Pacific Fleet and secure freedom of action for the planned offensive in Southeast Asia. The results of the attack are well known, but the battle was not decisive for three major reasons: the U.S. aircraft carriers were not in port, the fuel depot was not attacked, nor was the Pearl Harbor Naval Shipyard. Had the depot and shipyard been destroyed the fleet would have withdrawn to the west coast affording incalculable time for Japan to advance and more firmly secure its war gains.
Japan rapidly expanded across the Pacific and Southeast Asia in a coordinated offensive:
- Philippines: Attacked within hours of Pearl Harbor; U.S. and Filipino forces withdrew to Bataan and Corregidor, ultimately surrendering.
- Guam and Wake Island: Guam captured quickly; Wake resisted before falling on December 23.
- Hong Kong: fell to Japan on December 25, 1941.
- Rabaul (New Britain): captured in January 1942, becoming a major forward base.
- Burma: Japan advanced to cut off the Burma Road to China – it was the main overland supply route by which the United States and British Empire provided military aid to Nationalist China in its war against the Japanese – a war initiated in 1937.
- Malaya and Singapore: Japanese forces advanced swiftly down the Malay Peninsula, capturing Singapore on February 15, 1942
- Battle of the Java Sea (Feb 27, 1942): the Allied ABDA Command (American, British, Dutch, Australian) lost the majority of its sea power leaving Java and the Dutch East Indies open to Japanese invasion
- Dutch East Indies (Indonesia): Seized for its oil resources; Java fell by March 1942.
- Doolittle Raid (April 18, 1942): U.S. bombers struck Tokyo and other cities, a psychological blow to Japan and a factor in their decision to strike Midway.
- Battle of the Coral Sea (May 4–8, 1942): a strategic Allied victory in that it stopped the invasion of Port Moresby, New Guinea – a gateway to northern Australia.
Japan planned Operation MI, an operation to lure the U.S. Navy into a decisive battle by attacking and occupying Midway Atoll, a key American base northwest of Hawaii. Their hope was for a decisive Kantai Kessen-style battle that would destroy the last Pacific assets: U.S. aircraft carriers. Victory would cement Japanese strategic dominance in the Pacific.
Station Hapo, Hawaii – using signal intelligence vs. pure code breaking – learned of the attack on Midway and in an “all-in” gamble, Admiral Chester Nimitz committed the U.S. carries to the action that stopped the tide of Japanese advance in the Pacific. At the Battle of Midway (June 4–7, 1942) Japan suffered a catastrophic defeat, losing four fleet carriers and shifting the balance of naval power in the Pacific.
War Plan Orange – greatly revised, but with key elements intact – was now free to work its way westward to prosecute the War in the Pacific on new terms and conditions.
I do not plan to work step-by-step through the war in the Pacific. I will leave the heroic battles of places such as Guadalcanal and Tarawa for you to research. As well, I do not discuss the 1942 naval engagements such as Savo Island, Eastern Solomons, Cape Esperance, Santa Cruz, sea battle of Guadalcanal and Tassafaronga – all in the defense of the Marine Division on the island of Guadalcanal. I would note that the US Navy suffered more killed-in-action than the US Marines during the Guadalcanal campaign.
Moving ahead, I will highlight key several military actions that reveal fundamental shifts in Japanese military tactics and strategy. These shifts will shape planning for an invasion of the Japanese home islands in 1945-1946, an endeavor whose potential for the loss of life – military and civilian – defied estimation.
By the end of 1942 the advance of the Japanese has been stopped. The advent of 1943 would see the allied forces move from the defense to offense. The might of American industrial power in shipping building (combatants and merchants), aircraft, ammunition, and every aspect of logistics support would “come fully on line” as the work of the US submarines interdicted needed critical war supplies from Southwest Asia to Japan.
As noted in the first post, this series is not aimed at concluding with “the atomic bomb was the lesser of all the evils about to be faced.” It is intended to hopefully provide a correct historical understanding available to the 1945 leadership who faced the impossible task of ending a war with an intractable enemy and not repeating the armistice of 1919 that became the next war.
Image credit: various photographs from Naval Aviation Museum, National World War II Museum, and US Navy Archives.
War Plan Orange
All militaries conduct war games as a means of preparedness, readiness, strategic deterrence, intergovernmental planning, and to provide concrete options to civilian leaders in support of their policy and national security objective. Peacetime planning allows the military to anticipate potential threats and develop responses, systems, and forces before a crisis emerges.
War Plan Orange was one of several plans outlining the United States military’s detailed strategy for a future war. The plans were developed as early as 1919. War Plan Orange was the plan for a potential war in the Pacific. Some have argued that War Plan Orange is evidence that the United States always intended to begin a war with Japan; the logic being why else would you plan a war? The United States had found itself completely unprepared for the First World War and so even as it stood down its wartime military, planning for future wars began. Japan was the natural candidate given its evolving militarism and colonial expansion undertaken by Japan that began in the late 1860s with the Meiji Restoration. This evolution inexorably continued up to and into the start of World War II.
The Plan was part of the Navy War College curriculum. Virtually every senior naval leader in the Pacific had studied Plan Orange and contributed to it as new circumstances, technology, and situations arose. As one historian noted: “it was part of their DNA.”
Continue readingAchieving Colonial Ambitions
The effect of the military development efforts associated with the Meiji Restoration were realized in the first Sino-Japanese War (1894–1895). Victory over China ceded Japan the island of Taiwan and established Japan as a regional power. That status was solidified during the Russo-Japanese War (1904–1905) fought over rival imperial ambitions in Manchuria and the Korean Empire. Japan’s victory shocked the West and solidified its status as a major military power – and especially as a naval power with the utter defeat of the Russian fleet at the Battle of Tsushima – a battle that would shape Japan’s own war planning.
In 1910 Japan formally annexed Korea. A few years later, Japan was technically a member of the World War I allied alliance against Germany. Japan’s military, taking advantage of the great distances and Imperial Germany’s preoccupation with the war in Europe, seized German possessions in the Pacific (Micronesian islands) and German holdings in China, but there was no large-scale mobilization of the economy needed to support their ambitions. Politically, the Japanese Empire seized the opportunity to expand its sphere of influence in China, and to gain recognition as a great power in postwar geopolitics.
Continue readingThe Rise of Japan’s Militarism
The roots of Japanese Militarism can be found in the Meiji Restoration (late 1860s). In brief, the Restoration ended the rule of the Shoguns which had dominated Japan for centuries. The leaders of the Meiji Restoration started to reform the system of the country, acting in the name of Japan’s emperor with the goal to restore the emperor’s powers and position – in government and in the identity of Japan. But, the leaders also kept to themselves a number of powers. Even after the Meiji Restoration a small group had the real power and ruled in the name of the emperor. While the governmental form was a constitutional monarchy with the Emperor as leader of the nation, the real power lay in the hands of the military.
Japan rapidly industrialized and modernized its military in response to Western colonial ambitions in the Western Pacific and Asia region. While the process and history is far more complex than this article can describe, it is ironic that Japan’s ambitions – apart from leadership of the Asiatic sphere – was to establish colonies of its own. Japan lacked natural resources (oil, rubber, iron), making it vulnerable to embargoes by western powers and so expansion into Asia was seen as essential for economic security, survival, and growth as Japan took its place among world powers. At the same time rising population in the Japanese home islands led to calls for “living space” for its people. Colonies were viewed as necessary to settle Japanese farmers and laborers – or simply as sources to supply natural resources, including food. One result was the development of an ideology of the “Greater East Asia Co-Prosperity Sphere” which promoted pan-Asian unity under Japanese leadership. This became the justification for imperial rule as a way to liberate Asia from Western colonialism, though the result would be a different form of colonialism.
Continue readingWhat’s Next for this series?
Lots of writing and research. The previous post outlined the moral landscape I want to explore, but I also have an additional objective. As we approach the 80th anniversary of the end of World War II with the unconditional surrender of the nation of Japan and as the last of our WWII veterans pass from this life, I hope this series can remind or teach readers about the long-ago events that still shape modern life.
While this series assumes that atomic weapons were not available for the prosecution of the end of the war in the Pacific, the discussion around the topic and critique of the use of the first atomic bomb offers areas worth considering. Some of those arguments for not using atomic weapons were: Japan knew they were defeated and were ready for peace, naval blockade would have been sufficient, the demand for unconditional surrender was unnecessary, worries about post-WWII communism were premature, estimates of allied invasion-related deaths were inflated, and several other arguments. They are ideas worth exploring in this series.
Continue readingGenesis of the Series
Each year as we approach the Feast of the Transfiguration, which (sadly) shares a date with the atomic bombing of Hiroshima, there will be new reflections from military, political and moral perspectives. There are some reflections that ask the reader to ponder what was revealed/unveiled in Jesus’ transfiguration on Mt. Tabor and then ask the reader to ponder what was revealed/unveiled in the light of the atomic blasts at Hiroshima and Nagasaki. I think that is a good and holy endeavor: considering the revelation of the Divine vs. the human capacity for unleashing that which is wholly other than divine into this world.
We have long grown accustomed to living in an era of nuclear deterrent, mutually assured destruction. I would venture to say that most days we don’t think about the arsenals, unused in the last 80 years. We are more concerned about new entrants into the “nuclear weapons club.” Those are our modern day concerns and questions.
What were the questions facing leaders in 1945 when considering the first use of atomic weaponry? A weapon that until July 1945 they did not know if one would actually work. Nor were they sure of its explosive power; and there is some indication that there was not a clear understanding of the long term effects of radiation and fallout of post-denotation radioactive materials.
I find that many who have (and will) moralize for or against the decision to use nuclear weapons will make arguments that have been frozen in amber since the 1960s. Those arguments made some 60 years ago against the weapons use were largely made by academics and others detached from the experience of the combat and its history in the Pacific. Those that supported the decision tended to be people who were closer to the grim reality of war and felt that millions of potentially lost lives were saved the day the bomb dropped. It is now 80 years later.
When the war in the Pacific concluded, America moved on to enjoy a time without war. Soldiers, sailors, and airmen returned home and did not talk about the war. Detailed history of war planning and execution remained classified and would remain so for another 50 years, until 1995. Not just Allied documents but also Japanese war plans, reports, orders, directives, and more. The War Tribunals revealed atrocities and crimes, but not overall planning – especially that associated with potential allied invasion of the Japanese home islands. In addition, war diaries and journals of Japanese soldiers, sailors, airmen, leaders and diplomats were available and translated many years later, even as the collection of war reminiscences expanded. The reminiscences tended to be written as that generation reached retirement – those fortunate enough to have survived the war to reach retirement.
In the early 1960s, before these histories, documents and reminiscences became available, new voices arose from the ranks of society that were largely sheltered from service and combat. Of those who had experienced combat, few went on to become men of letters, ethical theorists, professors of contemporary history, or of international law. The arguments that began to arise in the 1960 were advanced in academia by solid historians such as Gar Alperovitz (b. 1936), Martin Sherwin (b. 1937), Barton J. Bernstein (b. 1936) and Lloyd Gardner (b. 1934) all of whom offered critiques of the decision to use atomic weapons. A summary of the bases of their objections might be simply described as:
- Moral: killing tens of thousands of civilians non-combatants violated just war principles and humanitarian norms.
- Military necessity: Japan was already militarily defeated and seeking ways to surrender – and even more so after Soviet entry into the war.
- Alternative strategies: the U.S. could have demonstrated the bomb’s power or modified unconditional surrender terms.
- Geopolitical motive: apart from the goal of ending the war in the Pacific, the bomb was a signal to the USSR.
- There was a lack of consensus among some U.S. military leaders who, after the war, voiced opposition or skepticism about use of the bomb.
A contemporary of these historians was Herbert Feis (b.1893). While, in general, he held some of the same objections, pointed out the paucity of historical records available to historians in the 1960s and criticized their work on that basis. He was critical of offering as history what were largely undocumented views, memories, and such.
My point is this: the five objections outlined above became the views/objections that have been “frozen in amber” ever since, unaltered by the release of historical documents. For example, the assertion that “Japan was already militarily defeated” is one without meaning in light of the post-1995 historical record. The question facing the leadership in 1945 was more: “The Japanese can not win the war, but they are not defeated. There is a demonstrated culture of fighting to the end with no surrender. Japan has militarized traditional non-combatants. Invasion of the home islands will bring about massive deaths on all sides” … and more. What the leadership had available to them that was not available to the 1960s historians were decrypted messages from the ULTRA (Japanese military code) and MAGIC (Japanese diplomatic code).
The release and declassification of war documents, the availability of translated Japanese war documents and war diaries, and the release of personal documents of Emperor Hirohito upon his death in 1989, all provided a wealth of information that has shed new light on the last four of the objections. But, what remains is still “Moral: killing tens of thousands of civilians non-combatants violated just war principles and humanitarian norms.”
I have a sense that the “decision” to use the atomic bomb was already presumptively “decided” well before August 1945. By the July 16, 1945 Trinity test in the Jornada del Muerto (Path of the Dead) desert in New Mexico, the USS Indianapolis (CA-35) had already set sail from San Francisco on the way to Tinian Island to deliver the weapons that would ultimately be dropped on the Japanese home islands. If I get that chance I may write up my notes on what led me to think that – and it is not an original thought.
But the arc of this series is not about the use of atomic weapons. The series will (attempt to) explore a “what if.” What if the bombs were not available/developed by the second half of 1945 and were not deemed to be ready for us in the foreseeable future? What then?
What were the choices remaining for the Allies regarding the war in the Pacific? Because what still faced leadership is: “Moral: killing tens of thousands of civilians and non-combatants violated just war principles and humanitarian norms.” That was certainly a question facing planners of any potential invasion of the Japanese home islands. But the numbers involved in the Pacific Theatre of Operations (PTO) were already well past tens of thousands of civilians before 1945.
The United States Holocaust Memorial Museum (USHMM) and Yad Vashem, Israel’s official memorial to the victims estimates 6 millions Jews were killed in the Nazi Holocaust. That is a number that should horrify anyone. But to give context, the War in the Pacific and East Asia had already resulted in 20-30 million deaths of civilians. In the last 12 months of the Pacific war, approximately 1 million civilians died in Japanese-held Vietnam (French Indo-China). This was only one of the countries occupied by Japan. Others include China, Taiwan, Korea, Cambodia, Laos, Thailand, Burma, Indonesia (Dutch East Indies), Malaysia and Singapore, Brunei and Borneo, Hong Kong, parts of New Guinea, the Marshall Islands, Truk, Palau, the Marshalls, and other Micronesian islands. What would be the civilian death toll as the war dragged on past August 1945? Would it be another 18-24 months? Did the American public have the resolve to support operations in the Pacific given the war in Europe ended in May 1945.
The war with Germany ended with the invasion of the German homeland and its unconditional surrender. Invasion and unconditional surrender would seem to be part of the Allied vision to ensure neither German or Japanese militarism ever arose in the future.
I should point out that in the aftermath of the war, the extent of civilian deaths in the European Theater of Operations became known to the American public. There were approximately 15 million civilian deaths with an estimated 10 million in Russia and 3 million in Poland alone.
In the face of such numbers, the world was well past any humanitarian norms and “proportional response” seems like a luxury for “ivory towers.” In the context of the summer of 1945 what was a path forward to stopping the war in the Pacific in the face of the historic reality of the militarism and colonial ambitions of the nation of Japan – when atomic weapons were not available?
This series is not aimed at concluding with “the atomic bomb was the lesser of all the evils about to be faced.” It is intended to hopefully provide a correct historical understanding available to the 1945 leadership who faced the impossible task of ending a war and not repeating the armistice of 1919 that became the next war.
If one holds that war is never justified, then these posts will likely make little difference. If one holds to the Catholic just war theory and doctrine, these posts will likely lead one to consider the moral question in the context of the “what if” there was no atomic bomb. What next?
For this series, “what’s next” is a brief post on why I am interested in the topic.
Image credit: various photographs from Naval Aviation Museum, National World War II Museum, and US Navy Archives.
A new series of posts
Starting tomorrow I begin posting a series about the the Pacific campaigns of World War II. Given my naval service background, operating on submarines out of Pearl Harbor, my interest is perhaps natural. As we approach the 80th anniversary of the end of the war, I thought it good to honor the men and women who fought a brutal war in the far reaches of the Western Pacific in places mostly no longer remembered. Places like Biak, Tarawa, Peleliu, in addition to the larger conflicts such as Midway, Iwo Jima and Okinawa. It is good to remember the human cost of the war: not just the lives lost, but wounds brought home.
I will post at 7:00 am during the week. The series is… actually I am not sure how long it is… I am still researching, musing and writing.
Image credit: various photographs from Naval Aviation Museum, National World War II Museum, and US Navy Archives.
A Medal of Honor
As World War II in the Pacific moved into 1944 the submarines of the U.S. Navy continued to extract a heavy toll on Japanese merchant shipping as an increasing number of Balao-class submarines entered service in the Pacific. At the same time, the Pacific submarines, now having sufficient numbers, began to patrol in “submarine groups” – receiving the inevitable nickname, “Wolf Pack.”
On this day in history (1944) A submarine group attacked a Japanese convoy near Bashi Channel south of Formosa, sinking four ships and damaging three others. During the operation, the submarine Parche (SS-384) engaged in a daring predawn surface attack against the convoy, torpedoing four ships. Despite the flames from the burning convoy ships illuminating Parche and drawing fire from the convoy’s escorts, Commander Lawson P. “Red” Ramage Naval Academy Class of 1931) aggressively attacked the enemy shipping. What ensured was a melee by any measure – and unseen in submarine warfare before or since.
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