Meanwhile an Expeditionary Force, consisting of his Majesty's 89th Regiment and the 7th Madras Native Infantry, under the command of Colonel Miles, was detached from Rangoon, with a considerable naval force, to subdue the maritime possessions of his Burmese Majesty to the eastward, in the hope that their loss might induce him to sue for peace. The success of the expedition was complete: Tavoy surrendered. Mergui was taken by storm, and British protection was welcomed by the inhabitants of the entire coast of Tenasserim.
Some few weeks later Sir Archibald Campbell attempted to release such of the inhabitants of Rangoon as were desirous of returning to their houses; and, by means of the sudden, unexpected, and, to the natives, inexplicable movement of our steamboats, a few families who had been driven to the villages at the heads of the numerous creeks which branch off from the Rangoon river were released from their guard, and joyfully took the opportunity of returning to their city. It was to the report of these people of the kind treatment they met with that our army was afterwards indebted for the return of the great body of the men whose services and exertions contributed to the final success of the war.
Having, so far, failed in all his undertakings, the Lord of the White Elephant now sent his two brothers, the Prince of Tonghoo and the Prince of Sarrawaddy, with a whole host of astrologers and a corps of "Invulnerables," to join the army and to direct the future operations of the war. The astrologers were to fix the lucky moment for attacking; the "Invulnerables" had some points of resemblance to the Turkish Delhis; they were the desperadoes, or madmen, of the army, and their madness was kept up by enormous doses of opium. The corps consisted of several thousand men, divided into classes; the most select band of all being called the "King's Own Invulnerables."
The Prince of Tonghoo established his headquarters at Pegu, and the Prince of Sarrawaddy took post at Donoopew, upon the great river, about sixty miles from Rangoon. In the beginning of August the Prince of Sarrawaddy sent down a force to occupy a strong post at the mouth of the Pegu River, a few miles below Rangoon, giving his people strict orders to block up the channel of the river in our rear, so that not one of the "wild foreigners" or "captive strangers" might escape the punishment that was about to fall upon them. Brigadier Smelt was at once sent, with a small corps, to dislodge Sarrawaddy's force. Our land troops were brought to a standstill, when within musket-shot of the place, by a deep and impassable creek; but a party of sailors from his Majesty's ship Larne, under Captain Marryat, threw a bridge over the creek; and, as soon as the column of attack pushed forward, the enemy began to fly, leaving eight guns and a quantity of ammunition in their stockade. A strong pagoda, with a numerous garrison, and with cannons pointing down every approach, was next carried with equal facility. Other posts on the rivers and creeks were then attacked and taken. Such of the enemy as had had any experience of our way of fighting seldom stopped to fight in their stockades; but a new set of people from the interior made a good stand in a succession of stockades on one of the rivers, and cost us the loss of a good many brave men.
All this time the astrologers were busy casting the lucky moment. Finally they told the Prince of Sarrawaddy that the moment had come for a decisive action; and, on the night of August 30th, a body of the "King's Own Invulnerables" promised to attack and carry the Golden Dagon Pagoda, in order that the princes and the sages and pious men in their train might celebrate the usual annual festival in that sacred place—which was now crowded with English grenadiers. And, true so far to their promise, the "Invulnerables," at the hour of midnight, rushed in a compact body from the jungle under the pagoda armed with swords and muskets. A small picquet, thrown out in our front, retired in slow and steady order, skirmishing with the "Invulnerables" until they reached the flight of steps leading from the road up to the pagoda. The moon had gone down, and the night was so dark that the enemy could be distinguished only by a few glimmering lanterns in their front; but their noise and clamour and the volume of their threats and imprecations launched upon the impious strangers if they did not immediately evacuate the sacred temple proved their number to be very great.
"In a dense column," says the historian, "they rolled along the narrow pathway leading to the northern gate of the pagoda, wherein all seemed as silent as the grave. But hark! the muskets crash, the cannons roar along the ramparts of the British post, drowning the tumult of the advancing column; and see!—see by the flash of our guns, the column reels back, the 'Invulnerables' fall, mortally wounded, and the rest turn their backs on the holy place, and run with frantic speed for the covering of the jungle."
Our grape-shot and our musketry broke the spell—those "Invulnerables" ventured no more near any of our posts. But a far more terrible enemy came within the lines; the dysentery broke out among our troops, killing many of them, and reducing more to a most emaciated and feeble state. Scarcely three thousand duty soldiers were left to guard the lines. Floating hospitals were established at the mouth of the river; and bread was now furnished in sufficient quantities, but nothing except change of season or of climate could restore the sufferers to health. Mergui and Tavoy, portions of our conquest on the sea-coast, were represented by the medical officers who visited them as admirable convalescent stations; and thither a number of our soldiers were sent, and with the most beneficial result. Men who had for months continued in a most debilitated state at Rangoon, rapidly recovered on arriving at Mergui, and were soon restored to their duty in full health.
The Lord of the White Elephant now determined to call down from the mountains of Arracan his prime favourite, and to carry off the Governor-General in golden chains. Bandula obeyed the call, and led his reinforced army from the mountains of Arracan to the Irawaddi river. He had begun his march about the end of August, at a season of the year when none but Burmese could have kept the field for a week, much less have attempted to pass the unhealthy jungles and the pestilential marshes of the country. The distance, by the shortest route, was more than 200 miles; but Bandula, gathering fresh forces in the latter part of his long march, reached Donoopew before Sir Archibald Campbell knew that he had left Arracan. Happily, our troops, though woefully reduced in numbers, were now fast recovering their health and strength; and two fresh British regiments, some battalions of native infantry, a regiment of cavalry, and a troop of horse artillery arrived from Calcutta and Madras, together with some admirable trotting cattle of the true Mysore breed. Five hundred native boatmen came round from Chittagong, and were busily employed in preparing boats for river service.
The rains had now ceased at Rangoon; and Sir Archibald Campbell, strongly reinforced, was completing his preparations for the ascent of the Irawaddi, and for an attack upon Prome, when he learned that Bandula had reached Donoopew with 60,000 fighting men, a considerable train of artillery, and a body of Cassay horse, the best cavalry in this part of Asia. Bandula's musketeers were estimated at 35,000 men. Other numerous bodies were armed with gingals, which carried an iron ball of from six to twelve ounces, and were mounted on a light carriage easily dragged about by two men; and great numbers were attached to the guns which were transported on the backs of elephants. The rest of the host were armed with swords and spears, and scattered through the army were more of the "Invulnerables" who had not yet tasted the sour grape of English guns, and who were amply provided with charms, spells, opium, bhang, and betel-nuts. As Bandula proclaimed on all sides his intention of riding at the head of his invincible army, with horses and elephants and all manner of warlike stores, to capture and destroy the British at Rangoon, it was deemed proper to wait for him there with a view to a decisive battle.
The enemy came down to the neighbourhood of Rangoon in boats. Our posts, consisting of redoubts and fortified pagodas, were speedily constructed, connecting the great Golden Dagon Pagoda by two distinct lines with Rangoon and the river, and leaving a disposable force for moving to the support of any point that might require such support. The post at Kemmendine was also strongly occupied, and was supported on the river by his Majesty's sloop Sophie, Captain Ryves, a Company's cruiser, and a strong division of gunboats.