Dr. Robert Lyman on the battle at Yenangyaung between 17-19 April 1942 early in the Burma campaign:

… the Yenangyaung battle is a fascinating one, with its own small degree of controversy, I decided to lay it out in this post. A mystery of the battle is the differing accounts of the Chinese attacks on the 19th April. In the British accounts (including Bill Slim’s in Defeat into Victory) the Chinese are blamed for failing to attack in the morning as they had promised, adding further jeopardy to the fate of the encircled 1st Burma Division. But was this true? The Japanese, Chinese and American accounts differ, so I thought I’d lay out the story to allow you, dear reader, to come to your own conclusion.

The fabulous map of Yenangyaung produced by the late Ian Lyall Grant.

The scrap at Yenangyaung was the final Corps-sized battle before the order to evacuate Burma Corps was given in early May. The Japanese had pushed out of Rangoon in mid-March, driving up the Irrawaddy on the left and against Toungoo on the right. Allied plans for the defence of Burma were inadequate, both Chinese (on the right) and Slim’s Burcorps (on the left) effectively fighting separate battles. Attempts by General Harold Alexander, the Army Commander, to control the battle and constrain the advancing Japanese ultimately came to naught. Alexander, Slim and Lieutenant General Joe Stilwell, nominally commanding the Chinese 5th Army, tried every trick in the tactical rule book to bring a halt to the relentless Japanese advance, and to destroy them in battle. After a month of fighting in which the Chinese were pushed out of Toungoo, the British lost control of Prome and an attempt to consolidate a defensive line across the country failed, the Japanese moved up the Irrawaddy in an attempt to turn the British flank, breaking in at the oilfield town of Yenangyaung on 17 April. At the time Slim’s Burma Corps was attempting to withdraw to the north from Allamyo. The Japanese infiltration into Yenangyaung cut the British in half. The 1st Burma Division was now cut off in Yenangyaung. The battle by the already weakened division (amounting to probably no more than 4,000 troops) into the Yenangyaung pocket over the period 17 and 19 April proved to be the severest trial yet faced by British troops in the short Burma campaign, the pressure applied by the Japanese exacerbated by the intense heat and the lack of water.

It was critical that Slim defeated this Japanese infiltration, rescue the 1st Burma Division from encirclement and retain the integrity of his Corps. If Yenangyaung were lost the Japanese would be free to sweep north to threaten Mandalay. It was crucial therefore that the divisional commander – Major General Bruce Scott – held on for as long as he could. But Slim had no reserve. The only hope of relief lay in assistance from the Chinese far to his right. He concluded that if he could engineer a attack into the pocket by the Chinese, across the Pin Chaung, combined with a breakout attack by 1st Burma Division, they might have a chance of escape. Nothing else looked likely to succeed.

When asked, Stilwell agreed to Alexander’s request for help to be provided to Slim, and gave him Lieutenant General Sun Lijen’s 38th Division – responsible for the defence of Mandalay – for the task. Chiang Kai-shek had given Sun responsibility for defending Mandalay. At midnight on 16 April Sun received an order from General Lo Cho-yin, “to dispatch his 113th Regiment to Kyaukpadaung, there to be commanded by the British General Slim …” Sun’s friend, Dr Ho Yungchi, recorded that by 3 a.m. he had arrived at Lo’s HQ at Pyawbe to discuss the order. Lo explained that the British were in serious trouble “in the oil town of Yenangyaung and had sent repeated requests for help”. By 6.30 a.m. it was agreed that Sun would personally take command of the 113th Regiment, while the two remaining regiments stayed to defend Mandalay. Sun and 1,121 men of 113th Regiment (commanded by Colonel Liu Fang-wu) arrived at Kyaukpadaung on the morning of 17 April.

Slim recalled: “The situation was not encouraging, and I was greatly relieved to hear that 113 Regiment of the Chinese 38th Division was just arriving at Kyaukpadaung. I dashed off in my jeep to meet their commander and give him his orders … this was the first time I had had Chinese troops under me … I got to like all, or almost all, my Chinese very much. They are a likeable people and as soldiers they have in a high degree the fighting man’s basic qualities – courage, endurance, cheerfulness, and an eye for country.”¹

At Yenangyaung, Slim’s plan was for Sun’s 38th Division to attack from the north on the morning of 18th April while the 1st Burma Division, within the pocket, fought its way out. As Slim and Sun Lijen talked, discussing the details of the attack planned for the following morning Slim decided that he would place the Stuart tanks of the 7th Armoured Brigade directly under Sun’s command. It was only a move a man confident in the capabilities of his allies could make. Slim commented that “I was impressed by Sun and it was essential to gain his confidence. His division had no artillery or tanks of its own, and I was therefore arranging that all the artillery we had this side of the Pin Chaung and all available tanks should support his attack.” The commander of the British armoured brigade – Brigadier John Anstice – accepted this arrangement and according to Slim “he and Sun got on famously together”. What’s more, the soldiers worked well together too, Slim recording that the “gunners and tank crews, as is the way of British soldiers, soon got on good terms with their new comrades, and, in spite of language difficulties of an extreme kind, co-operation was, I was assured by both sides, not only close but mostly friendly.”² Accordingly, at 6.15 a.m. on 18 April, Major Mark Rudkin of 2nd Royal Tank Regiment (2RTR) reported as instructed by Anstice to 38th Division HQ:

There was little activity except for the cooking of breakfast and it seemed most unlikely that the attack could start on time. I asked the British liaison officer with the Chinese what was happening and he informed me that as the Chinese realized that they would not be ready to attack at 0630 hours, they had put their watches back one hour, so that officially they were still attacking at 0630 though the time would in reality be 0730. They had, therefore, not lost “face” by being late.

The plan was that a troop of tanks would follow the leading troops of the leading Chinese battalion and give what support it could. Another troop was to follow the leading infantry battalion and assist the leading troop if required. The tanks would be almost entirely road bound owing to the going off the road.

At 0730 the assaulting Chinese moved forward off the ridge on a front of about four hundred yards, the leading troop keeping very close behind on the road. On foot near the tanks was a Chinese interpreter who carried out liaison between the tanks and infantry.

After advancing about half a mile the leading tank was hit by a Japanese 75-mm gun situated on the road just north of the Pin Chaung which was firing straight up 300 yards of road. The tank was disabled but there were no casualties.

The Chinese advance continued and by afternoon had almost reached the line of the ford on the Pin Chaung which was still held by the enemy. The Chinese had had heavy casualties, especially amongst officers, as it was the custom for Chinese officers to lead, whatever their rank. It was finally decided to hold positions about half a mile north of the crossing and continue the attack next day.³

With the first attack a failure, the Japanese retained their grip on both the ford and the village of Twingon. The situation for the surrounded remnants of the 1st Burma Division was desperate; the Japanese close to achieving a complete victory. Slim and Sun then worked through a plan for another attempt to be made the following morning, 19th April. This day also began badly, however. The Chinese attack was scheduled to begin at 7 a.m. British accounts subsequently recorded that a Chinese attack did not materialise at this time. Slim subsequently recorded in Defeat into Victory that the failure to attack must have been a function of the administrative difficulties faced by the Chinese. He wrote that with the Chinese “lack of signalling equipment, of means of evacuating wounded and of replenishing ammunition, and their paucity of trained junior leaders it was not surprising that to sort themselves out, reform, and start a fresh attack took time”.⁴ Slim was invariably impressed with what he saw of the Chinese soldier in action, but considered their support and command functions to be shockingly poor and a source of constant frustration to themselves, and to all who had occasion to operate with them.

Slim, and most other British published accounts, including the Indian and British Official Histories, record that the attack finally went in at 3 p.m., when Colonel Liu’s 113th Regiment successfully captured the ford and penetrated into Yenangyaung.⁵ “When the Chinese did attack they went in splendidly” wrote Slim in admiration. “They were thrilled at the tank and artillery support they were getting and showed real dash. They took Twingon, rescuing some two hundred of our prisoners and wounded. Next day, 20th April, the 38th Division attacked again and with tanks penetrated into Yenangyaung itself, repulsing a Japanese counter-attack. The fighting was severe and the Chinese acquitted themselves well, inflicting heavy losses, vouched for by our own officers.”

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1. Slim, Defeat into Victory (1956), p. 63.

2. Ibid., p. 65.

3. Bryan Perrett, Tank Tracks to Rangoon: The Story of British Armour in Burma (London: Robert Hale, 1978)

4. Slim, op. cit., p. 70.

5. Bisheshwar Prasad (ed,) The Retreat from Burma 1941 – 42 (Calcutta, Combined Inter-Service Historical Section, 1954), p. 296.