Crosby's company's actions (along with one other company) resulted in the British ships on the Charles River loading their cannon with hot grapeshot and burning Charlestown. The battle occurred in three phases, and the 3rd Regiment participated in the first two, which resulted in the decisive defeat of the right wing of the British Army under Major General William Howe. However, the New Hampshire regiments were nearly out of ammunition and could only pull back to Bunker Hill to watch the final phase of the battle play out and then cover the retreat of the Massachusetts soldiers as they escaped the redoubt after it had been finally overrun.