The 26th Continental Regiment (previously known as Gerrish's Regiment and later known as the 9th Massachusetts Regiment) was an infantry unit of the Massachusetts Line during the American Revolutionary War.
 Gerrish's Regiment was raised in the early days of the war, and the regiment underwent name changes as the Continental Army was reorganized in 1776 and 1777.
 From 1777 onward, the unit was known as the 9th Massachusetts Regiment.
The 10th Massachusetts Regiment was a military regiment in the American Revolutionary War.
 It was authorized on 16 September 1776 in the Continental Army under Colonel Marshall at Boston, Massachusetts as eight companies of volunteers from Worcester, Middlesex, Essex, Bristol, Hampshire, Plymouth, and Suffolk counties of the colony of Massachusetts and Cheshire county of the colony of New Hampshire.
 On 13 August 1777 the regiment was assigned to 3d Massachusetts Brigade in the Northern Department.
 The brigade was reassigned to the main Continental Army on 27 October 1777.
 On 20 November 1778 the brigade was reassigned to the Highland's Department and on 12 May 1779 was re-organized to nine companies.
 On 1 January 1781 the regiment was reassigned to the 1st Massachusetts Brigade of the Highland's Department.
 On 18 June 1781 the regiment was reassigned to the New Hampshire Brigade.
 This brigade was reassigned from the Highland's Department to the Northern Department on 14 October 1781.
 The regiment was relieved from this brigade on 12 November 1781 and assigned to the Highland's Department.
 On 29 August 1782 the regiment was assigned to the New Hampshire Brigade in the Northern Department.
 It was relieved from this brigade on 26 October 1782 and assigned to the Highland's Department.
 The regiment was disbanded on 15 November 1783 at West Point, New York.
 The regiment would see action at the Battle of Saratoga and the Battle of Monmouth.
The 12th Massachusetts Regiment, also known as 18th Continental Regiment and Phinney's Regiment, was raised on April 23, 1775, under Colonel Edmund Phinney outside of Boston, Massachusetts.
 The regiment saw action at the Battle of Bunker Hill, Battle of Valcour Island, Battle of Saratoga and the Battle of Monmouth.
 The regiment was disbanded on January 1, 1781, at West Point, New York.
Henley's Additional Continental Regiment was raised on January 12, 1777 with troops from Massachusetts and New Hampshire at Boston, Massachusetts for service with the Continental Army.
 The regiment saw action at the Battle of Monmouth and the Battle of Rhode Island.
 The Regiment was merged into the 16th Massachusetts Regiment on April 9, 1779.
The 7th Continental Regiment, also known as Prescott's Regiment, was raised April 23, 1775, as a Massachusetts militia regiment at Cambridge, Massachusetts, under Colonel William Prescott.
 The regiment would join the Continental Army in June 1775.
 The regiment saw action during the Siege of Boston and the New York Campaign.
 On January 1, 1777, the regiment was disbanded and volunteers from the regiment joined the 2nd Massachusetts Regiment.
The 7th Massachusetts Regiment was an infantry regiment of the Continental Army.
 It was constituted on 16 September 1776, and was originally known as Alden's Regiment after its first colonel, Ichabod Alden.
 It was organized as seven companies of volunteers from across Massachusetts, and Mayhew's company from the 25th Continental Regiment during the later months of 1776.
 The regiment was assigned to the Northern Department on 9 February 1777.
 It was reassigned to the Highland's Department on 13 March 1777.
 On 12 June 1777 it was assigned to 2nd Massachusetts Brigade and three days later, 15 June 1777, it was reassigned to the 1st Massachusetts Brigade.
 The brigade was reassigned to the Northern Department on 1 July 1777 and the regiment was relieved from the brigade on 31 March 1778.
 The regiment re-organized to nine companies on 25 September 1778 and reassigned to the Northern Department on 14 June 1779.
 The regiment was reassigned to the New Hampshire Brigade of the main army on 23 August 1779.
 On 14 November 1779, the regiment was reassigned to the 3d Massachusetts Brigade in the Highland Department.
 On 1 January 1781, the regiment was reassigned to the 1st Massachusetts Brigade.
 The regiment was furloughed on 12 June 1783 at West Point, New York and disbanded on 15 November 1783.
Lee's Additional Continental Regiment was raised on January 12, 1777 with troops from Massachusetts at Cambridge, Massachusetts for service with the Continental Army.
 The regiment saw action at the Battle of Monmouth and the Battle of Rhode Island.
 The Regiment was merged into the 16th Massachusetts Regiment on April 9, 1779.
 Lineage carried on by the 101st Engineer Battalion (United States).
The 16th Massachusetts Regiment, also known as Henry Jackson's Additional Continental Regiment, was a unit of the American Massachusetts Line, raised on January 12, 1777, under Colonel Henry Jackson at Boston, Massachusetts.
 The regiment would see action at the Battle of Monmouth and the Battle of Rhode Island.
 The regiment was disbanded on January 1, 1781, at New Windsor, New York.
The 5th Massachusetts Regiment also known as the 27th Continental Regiment was raised on April 17, 1718, under Colonel Mansfield outside of Boston, Massachusetts.
 The regiment saw action at the Battle of Concord, Battle of Bunker Hill, New York Campaign, Battle of Trenton, Battle of Princeton.
 Colonel Rufus Putnam took command in January 1777 and participated in the Battle of Saratoga.
The Battle of Monmouth was an American Revolutionary War battle fought on June 28, 1778, in Monmouth County, New Jersey.
 The Continental Army under General George Washington attacked the rear of the British Army column commanded by Lieutenant General Sir Henry Clinton as they left Monmouth Court House (modern Freehold Borough).
 It is also known as the Battle of Monmouth Courthouse.

Question: The 16th Massachusetts Regiment saw action at what battle that was fought on June 28, 1778?
Answer: The Battle of Monmouth