wounded and captured in the battle. He was not exchanged until 10 January 1777 when he received a commission as lieutenant colonel in John Lamb's 2nd Continental Artillery Regiment. He performed noteworthy service at Compo Hill during the Danbury Raid. During the action, Lamb's three-gun battery made a valiant attempt to stop a British bayonet charge. Oswald served as Charles Lee's senior artillery officer at the Battle of Monmouth on 28 June 1778. Under his authority were Captain Thomas Wells of the 3rd Continental Artillery Regiment, two guns, Captain David Cook of the 3rd Artillery, two guns, Captain Thomas Seward of the 3rd Artillery, two guns, Captain Thomas Randall of the 2nd Artillery, two guns, and four guns of the 3rd Artillery attached to Charles Scott's brigade. Wells was attached to William Grayson's brigade, Cook to James Mitchell Varnum's brigade (under John Durkee), Seward to Anthony Wayne's brigade, and Randall to William Maxwell's brigade. Since Lee had expressed doubts about the wisdom of harassing the retreat of Sir Henry Clinton's British army, George Washington placed the American advance guard under the command of Gilbert Motier, marquis de La Fayette. However, on 25 June Lee changed his mind and asked for the command. Since Lee was his second-in-command, Washington reinforced the advance guard to 5,500 troops and put Lee in charge. On 27 June Washington ordered Lee to attack Clinton's rear guard the next morning. On 28 June, Lee's first units began to march at 7:00 AM. When they reached the bridge across Spottswood Middle Brook (West Morass), conflicting reports caused the column to delay. Eventually at 9:00 AM, Lee sent Wayne forward with an ad hoc force consisting of four guns under Oswald, Grayson's brigade, Henry Jackson's detachment, and Richard Butler's detachment. These troops pushed back the Queen's Rangers but came under some cannon fire and fell back into some trees, leaving two of Oswald's guns exposed on their left flank. After his soldiers dispersed some British light dragoons, Lee sent John Durkee's brigade to support Oswald's guns. Almost immediately Durkee was wounded and replaced by Jeremiah Olney of the 2nd Rhode Island Regiment. Lee ordered La Fayette to take Wayne's original brigade and press the British left flank. Around 10:30 AM, Lee saw to his shock that Clinton was advancing with 6,000 troops. He doubted that his soldiers were capable of stopping their enemies. Because Lee was recently released