CHAPTER ONE HUNDRED TWENTY-FIVE – Part One
Ryuu Tsutsukimasu
Following the audacious invasion of Kwangtung Province by the British on December 1, 1941, an invasion that resulted in the momentary occupation of Canton by Australian and New Zealand forces from Hong Kong as well as the embarrassment of General Takashi Sakai’s 23rd Army being repulsed from Hong Kong with much heavier than expected casualties, Marshal Hisaichi Terauchi of the Southern Expeditionary Army Group received permission from the Supreme War Council to deviate from the original blueprints for Operation
Kami No Ikari (Divine Wrath). Terauchi argued successfully that due to the inability to successfully storm Hong Kong without sustaining unacceptable losses, the mixed results of the Imperial Japanese Navy’s attack upon the Americans at Pearl Harbor and the Philippines, the disastrous loss of the majority of General Homma’s 14th Army to air attacks and the greater than expected strength of the Royal Navy in the South China Sea,
Kami No Ikari’s call for the Philippine Islands, the Dutch East Indies and the island chains in the Southwest Pacific would need to be postponed indefinitely.
Field Marshal Hisaichi Terauchi, former War Minister and recently promoted commander of all Imperial Japanese Army troops on the Asian mainland.
In lieu of those operations (Operations A and M) Marshal Terauchi called for the Imperial Japanese Navy to conduct a sortie into the Indian Ocean while an assault by the Imperial Japanese Army would march into French Indochina, Burma and India. The proposed IJA assault to the west would, Terauchi explained, expose British and French weakness to the indigenous peoples and allow anti-colonial agitation to bring allies to Japan, and the IJN’s mission would lure Admiral James’ Far East Station into a set battle that would allow for his destruction and the subsequent raids in the India Ocean would force the British to redeploy vessels to India or East Africa (in the event that the IJN was unable to come to grips with Admiral James’ squadrons). Terauchi called the proposed operation
Ryuu Tsutsukimasu, Dragon Thrust.
The IJN’s component of
Ryuu Tsutsukimasu had been planned out before the war by Admiral Yamamoto and Captain Sadatoshi Tomioka, the head of the Navy General Staff's Planning section, and several steps had been taken before the war to provide for the operation.
Several weeks prior to the start of the war, Yamamoto sent a convoy of ten of the IJN’s new I-400 super submarines, ten of the latest AM class submarines and thirty of other submarines to Christmas Island (220 miles south of Jakarta) and the Cocos Islands and Keeling Islands (southwest of Christmas Island and approximately midway between Australia and Ceylon). Having arrived several days before the onset of hostilities, the crews of the submarines and the one hundred Japanese Marines secured the facilities at both locations (including the wireless telegraph station on Direction Island which was a vital link between the United Kingdom, Australia and New Zealand). The true mission of the submarines was then undertaken, the unloading of supplies of fuel and ammunition from their specially designed holds.
The I-400s had original been conceived to be capable of making three round-trips to the west coast of the United States without refueling or one round-trip to any point on the globe while storing and then launching two to three attack aircraft armed with one torpedo or one 1,800 lb bomb. By not carrying the aircraft or defensive torpedoes, the I-400s could transport several tons of supplies
After unloading, the submarine fleet left the Japanese Marines on the islands and then raced back to Japanese territory in order to reload and make a second supply run for the newly occupied islands. As the
Kido Butai struck Hawaii, the submarine fleet once more headed for Christmas Island the Cocos Islands and Keeling Islands.
In Tokyo, Yamamoto and Tomioka reworked their original pre-war plan as the
Kido Butai steamed back for the Home Islands. Directing the fleet to make for Formosa, Yamamoto arranged for the sunk
Sōryū to be replaced by the two new
Hiyō-class aircraft carriers
Hiyō and
Jun'yō, and the heavily damaged
Kirishima to be replaced by the battleship
Nagato. After replenishing stores, aircraft and aircrew, the newly reinforced
Kido Butai, still under the command of Admiral Chūichi Nagumo, would sail from Formosa southward through the Philippine Sea, cross through the Seram Sea to the Sea of Timor, and thence conduct a air raid upon the port city of Darwin in northern Australia. The
Kido Butai would then proceed westward into the Indian Ocean, conducting raids upon targets in Java, Sumatra and Singapore before sailing into the Bay of Bengal to attack targets in Burma, India and the Royal Navy anchorage in Ceylon.
Captain Tomioka, seated far left, and his planning staff. While the Indian Ocean Raid was partly his brain-child, Tomioka had strongly proposed launching an invasion of Northern Australia rather than the Raid and but had been over-ruled by Yamamoto.
While the IJN was creating havoc in Australia, Indonesia and the Indian Ocean, Marshal Terauchi plan called for the IJA to be doing the same by way of a three pronged offensive against both British India and French Indochina. The central thrust of the Imperial Japanese Army’s offensive would itself a two-pronged attack by Lieutenant General Shōjirō Iida and his 15th Army (comprised of the highly regarded 12th, 18th, 33rd and 55th Infantry Divisions). The southern attack would, from bases in somewhat allied Thailand, cross over the jungle-clad mountain ranges into the southern Burmese province of Tenasserim and across the Kawkareik Pass to march for the city of Moulmein at the mouth of the Salween River. The northern prong would march from bases near the Chinese city of Baoshan in Yunnan province and cross into Burma with the target being the capital of Rangoon. Following the successfully prosecution of the initial assault Iida would then send his southern corps (the 18th and 33rd Divisions) south into Malaya while the northern corps (the 12th and 55th Divisions) would march northwest along the coast of the Bay of Bengal toward Calcutta.
The second thrust of Terauchi’s offensive would take the Indochina Expeditionary Army led by Lieutenant General Shigeru Sawada (made up of Sawada’s 13th Army (the 2nd Guards, 5th Infantry, 40th Infantry Divisions and the 14th Tank Brigade) and Chinese troops of General He Zhuguo’s 15th Army Group) south from the city of Yamchow in the Chinese province of Guangxi and toward Hanoi and Vientiane. Upon securing of those two cities, the plan called for Zhuguo’s 15th Army Group to march along the mountainous interior of French Indochina and Sawada’s troops to march along the coast to capture Đà Nẵng. Following the capture of Đà Nẵng, the Chinese would continue southward to Saigon while Sawada’s troops would board ships and sail for Malaya to link up with Iida’s 18th and 33rd Divisions to assault Singapore.
In conjunction with these activities in the south, the northern prong of the IJA attack would be led by General Tomoyuki Yamashita and the 25th Army (consisting of the 3rd Guards, 7th, 28th and 56th Infantry Divisions, 1st, 3rd and 6th Tank Brigades, and the 18th Field Artillery Brigade) which would march out of bases in Sinkiang (known alternatively as Chinese Turkestan, East Turkestan or to the Chinese as simply, Xinjiang) centered upon the oasis city of Kashgar. Yamashita’s target would be the relatively unprotected territories of northern India, specifically the Punjab and Rājputāna, with the ultimate goal being the capturing of the capital of British India, New Delhi.
Type 1 medium tanks, known as Chi-He, of the 5th Tank Regiment of the 1st Tank Brigade. An improved version of the Type 97 Chi-Ha tanks, the Type 1 were anticipated to be the workhorse of Yamashita’s drive in to British India serving as not only the armoured thrust for the 25th Army but also a main form of transport for the Army’s infantry divisions.
The Imperial Japanese Army’s heaviest tank, the Type 95, seen here in a training exercise in China sometime in the spring of 1941, was modeled from German and Italian tank designs and featured two turrets, the main armament being a 70mm cannon with the secondary turret mounting a 37mm gun and two 6.5mm machine guns. The Type 95s of the 1st Heavy Tank Battalion of the 2nd Tank Regiment, 3rd Tank Brigade, were sent on the difficult trek into British India to by used to quickly demolish both the defenses and the morale of any British unit that attempted to delay the 25th Army’s march
Following the capture of New Delhi, Marshal Terauchi’s plan called for half of Yamashita’s 25th Army to march eastward to link up with the 12th and 55th Divisions in Calcutta and the rest of the 25th Army to march south first to Surat and then onward to Bombay.
Against this operation, the British and French were virtually defenseless. It was true that Hong Kong and Macao were still strongly held by the Australians and the New Zealanders under Generals Bingham-White and Freyberg, despite serious casualties suffered during the taking and subsequent retreat from Canton, yet the rest of Southeast Asia was not as fortunate.
On paper the French had Indochina relatively well protected with a French Foreign Legion regiment, a colonial infantry regiment and an artillery regiment north of Haiphong (the 5e
Régiment Etrangère d'Infanterie - Foreign Infantry Regiment of the French Foreign Legion and 4e
Régiment d'artillerie Coloniale - Colonial Artillery Regiment near the city of Lang Son and the 9e
Régiment d'Infanterie Coloniale in Haiphong), two colonial infantry regiments (11e and 16e
Régiment d'infanterie Coloniale) in the Luang Prabang province of northern Laos on the boarder with Siam,
a colonial infantry brigade in northern Laos (
Brigade d'Annam-Laos - Annamite-Laotian Brigade), one infantry regiment (3e
Régiment Tirailleurs Tonkinois - Tonkinese Rifles Regiment) in Đà Nẵng, one infantry regiment (
Régiment de Tirailleurs Annamites - Annamite Rifle Regiment) in Saigon, two infantry and one artillery regiment in Phnom Penh (10e and 19e
Régiment Mixte d'infanterie Coloniale - Colonial Composite Infantry Regiment, and 5e
Régiment d'artillerie Coloniale) and one infantry regiment in Battambang (4e
Régiment de Tirailleurs Tonkinois)
A squad of the 19e Régiment Mixte d'infanterie Coloniale
on patrol near the French Indochina-Siam boarder in November 1941
However, in reality the French forces in Indochina were stretched very thin against the threat of Sino-Japanese invasion from the north and the more credible threat of invasion from Siam to the west. In addition the regiments themselves were at less than half strength as the French Army had pulled men from those units for service in the war in Europe or training in France. That being said, the state of the defenses in British India (India proper and Burma) and Malaya were far worse.
Garrisoned in the capital of Burma, Rangoon, and tasked with the defense of Burma as well as all of Malaya north of Singapore was Major General Nigel M. Wilson’s British Army of Malaya. Sadly, Wilson’s entire army was comprised of a single Imperial regiment, the Rangoon Rifles, and a sole company of colonial police. On the plus side for General Wilson, the majority of his army/regiment, was comprised of Anglo-Burmese, Burmese Indian of Punjabis descent and many Shans (natives of the Shan States of eastern Burma), and armed and trained on par with the rest of the British Army’s regular regiments.
Members of 2nd Battalion, Rangoon Rifle Regiment
during a training exercise sometime in the autumn of 1941
To the west of Burma, and tasked with defense of all of British India, was General Lewis M. Heath’s British Army of India. Prior to the outbreak of war the BAoI was comprised of the separate entities, the Indian Army (which was comprised of regiments recruited locally and permanently based in India and officered by expatriate British officers and indigenous Indian and Anglo-Indian officers) and the British Army in India (consisting of British Army units posted to India for a tour of duty, following which would then be posted to other parts of the Empire or back to the UK). Following the re-organisation of the British Army following the ascension of King Edward VIII, the Army of India was created and was simply a tandem organization of the Indian Army and the British Army of India. Further re-organization of the British Army, under order the Secretary of War Alfred “Duff” Cooper in 1938, created the current BAoI which was a full integration of the former Indian Army into the British Army.
Traditionally a large force the BAoI at the outset of the war found the regiments of the former British Army in India transferred to East Africa to form General Claude J.E. Auchinleck’s British Army of Sub-Sahara. The remaining regiments, the 2nd and 6th Indian Infantry Regiments, were left to form the cadre of the BAoI and were used as training units for replacement troops to be deployed throughout the Empire following the completion of training. In early 1941, with the completion of the integration reforms, the 2nd Indian Infantry Regiment was rechristened as the Wallajahbad Light Infantry Regiment and the 6th Indian Regiment was likewise rechristened as the Garhwal Rifles Regiment. With the heightening of tensions and the Empire of Japan, the War Ministry in London authorized the raising of multiple regiments within India, and when the Japanese attacks on Hong Kong, the Philippines and Pearl Harbor were launched, General Heath ad his two regiments were quickly training four new regiments (the Bombay Grenadiers, Queen Victoria's Own Rajput Light Infantry, King George's Own Ferozepore Sikhs, and the Rajputana Rifles Regiments).
The force dispositions of the British Army in Burma, Malaya and British India was well known to the Imperial Japanese Army, and despite a healthy respect for the abilities of the individual soldier of the British Army of India, neither Field Marshal Terauchi nor the Supreme War Council (
Gunji sangikan kaigi) in Tokyo considered there to be sufficient defenses in the entire British Far East to defeat
Ryuu Tsutsukimasu, Dragon Thrust. A mere two days following the presentation of their plans, Terauchi and Yamamoto were ordered by the Emperor and the Supreme War Council to commence the operation.
As signals were sent out, and were intercepted by British Intelligence, once more the British Empire was forced to react. But would it be enough and would it come in time?
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Stay tuned for the next one in which we may or may not learn what the Empire has planned in order to defend India and the Far East.
