Battle of Bunker Hill - Assault

Assault

By 3 pm, the British reinforcements, which included the 47th Foot and the 1st Marines, had arrived, and the British were ready to march. Brigadier General Pigot's force, gathering just south of Charlestown village, were taking casualties from sniper fire, and Howe asked Admiral Graves for assistance in clearing out the snipers. Graves, who had planned for such a possibility, ordered incendiary shot fired into the village, and then sent a landing party to set fire to the town. The smoke billowing from Charlestown lent an almost surreal backdrop to the fighting, as the winds were such that the smoke was kept from the field of battle.

Pigot, commanding the 5th, 38th, 43rd, 47th, and 52nd regiments, as well as Major Pitcairn's Marines, were to feint an assault on the redoubt. However, they continued to be harried by snipers in Charlestown, and Pigot, when he saw what happened to Howe's advance, ordered a retreat.

General Howe led the light infantry companies and grenadiers in the assault on the American left flank, expecting an easy effort against Stark's recently arrived troops. His light infantry were set along the narrow beach, in column, in order to turn the far left flank of the colonial position. The grenadiers were deployed in the middle. They lined up four deep and several hundred across. As the regulars closed, John Simpson, a New Hampshire man, prematurely fired, drawing an ineffective volley of return fire from the regulars. When the regulars finally closed within range, both sides opened fire. The colonists inflicted heavy casualties on the regulars, using the fence to steady and aim their muskets, and benefit from a modicum of cover. With this devastating barrage of musket fire, the regulars retreated in disarray, and the militia held their ground.

The regulars reformed on the field and marched out again. This time, Pigot was not to feint; he was to assault the redoubt, possibly without the assistance of Howe's force. Howe, instead of marching against Stark's position along the beach, marched instead against Knowlton's position along the rail fence. The outcome of the second attack was much the same as the first. One British observer wrote, "Most of our Grenadiers and Light-infantry, the moment of presenting themselves lost three-fourths, and many nine-tenths, of their men. Some had only eight or nine men a company left ..." Pigot did not fare any better in his attack on the redoubt, and again ordered a retreat. Meanwhile, in the rear of the colonial forces, confusion continued to reign. General Putnam tried, with only limited success, to send additional troops from Bunker Hill to Breed's Hill to support the men in the redoubt and along the defensive lines.

The British rear was also in some disarray. Wounded soldiers that were mobile had made their way to the landing areas, and were being ferried back to Boston, and the wounded lying on the field of battle were the source of moans and cries of pain. General Howe, deciding that he would try again, sent word to General Clinton in Boston for additional troops. Clinton, who had watched the first two attacks, sent about 400 men from the 2nd Marines and the 63rd Foot, and then followed himself to help rally the troops. In addition to the new reserves, he also convinced about 200 of the wounded to form up for the third attack. During the interval between the second and third assaults, General Putnam continued trying to direct troops toward the action. Some companies, and leaderless groups of men, moved toward the action; others retreated. John Chester, a Connecticut captain, seeing an entire company in retreat, ordered his company to aim muskets at that company to halt its retreat; they turned about and headed back to the battlefield.

The third assault, concentrated on the redoubt (with only a feint on the colonists' flank), was successful, although the colonists again poured musket fire into the British ranks, and it cost the life of Major Pitcairn. The defenders had run out of ammunition, reducing the battle to close combat. The British had the advantage once they entered the redoubt, as their troops were equipped with bayonets on their muskets while most of the colonists were not. Colonel Prescott, one of the last colonists to leave the redoubt, parried bayonet thrusts with his normally ceremonial sabre. It is during the retreat from the redoubt that Joseph Warren was killed.

The retreat of much of the colonial forces from the peninsula was made possible in part by the controlled retreat of the forces along the rail fence, led by John Stark and Thomas Knowlton, which prevented the encirclement of the hill. Their disciplined retreat, described by Burgoyne as "no flight; it was even covered with bravery and military skill", was so effective that most of the wounded were saved; most of the prisoners taken by the British were mortally wounded. General Putnam attempted to reform the troops on Bunker Hill; however the flight of the colonial forces was so rapid that artillery pieces and entrenching tools had to be abandoned. The colonists suffered most of their casualties during the retreat on Bunker Hill. By 5 pm, the colonists had retreated over the Charlestown Neck to fortified positions in Cambridge, and the British were in control of the peninsula.