Roughly a quarter of the regiment participated in the siege, and was involved in the October 14 attacks on the British redoubts. According to Lafayette's own account the Americans did not fire a gun, but used only the bayonet. The brigades of light infantry under Generals Peter Muhlenberg and Hazen "advanced with perfect discipline and wonderful steadiness. The battalion of Colonel Vose deployed on the left. The remainder of the division and the rear-guard successively took their positions, under the fire of the enemy, without replying, in perfect order and silence."