Capture of Fort Ticonderoga in the context of "Benedict Arnold"

The Green Mountain Boys were a militia organization established in 1770 in the territory between the British provinces of New York and New Hampshire, known as the New Hampshire Grants and later in 1777 as the Vermont Republic (which later became the state of Vermont). Headed by Ethan Allen and members of his extended family, it was instrumental in resisting New York's attempts to control the territory, over which it had won de jure control in a territorial dispute with New Hampshire.

Some companies served in the American Revolutionary War, including notably when the Green Mountain Boys, led under the command of Ethan Allen while being assisted by Benedict Arnold, captured Fort Ticonderoga on Lake Champlain on May 10, 1775, and invaded Canada later in 1775. In early June 1775, Ethan Allen and his then subordinate, Seth Warner, induced the Continental Congress at Philadelphia to create a Continental Army ranger regiment from the then New Hampshire Grants. Having no treasury, the Congress directed that New York's revolutionary Congress pay for the newly authorized regiment. In July 1775, Allen's militia was granted support from the New York revolutionary Congress.

Ethan Allen (January 21, 1738 [O.S. January 10, 1737] – February 12, 1789) was an American farmer, writer, military officer, and politician. He is best known as one of the founders of Vermont and for the capture of Fort Ticonderoga during the American Revolutionary War, and was also the brother of Ira Allen and the father of Fanny Allen.

Allen was born in rural Connecticut and had a frontier upbringing, but he also received an education that included some philosophical teachings. In the late 1760s, he became interested in the New Hampshire Grants, buying land there and becoming embroiled in the legal disputes surrounding the territory. Legal setbacks led to the formation of the Green Mountain Boys, whom Allen led in a campaign of intimidation and property destruction to drive New York settlers from the Grants. He and the Patriot-aligned Green Mountain Boys seized the initiative early in the Revolutionary War and captured Fort Ticonderoga in May 1775. In September 1775, Allen led a failed attempt on Montreal which resulted in his capture by the British. He was imprisoned aboard ships of the Royal Navy, then paroled in New York City, and finally released in a prisoner exchange in 1778.

Henry Knox (July 25, 1750 – October 25, 1806) was an American military officer, politician, bookseller, and a Founding Father of the United States. Knox, born in Boston, became a senior general of the Continental Army during the Revolutionary War, serving as chief of artillery in all of George Washington's campaigns. Following the war, he oversaw the War Department under the Articles of Confederation from 1785 to 1789. Washington appointed him the nation's first Secretary of War, a position which he held from 1789 to 1794. He is well known today as the namesake of Fort Knox in Kentucky, which is often conflated with the adjacent United States Bullion Depository.

Knox was born and raised in Boston where he owned and operated a bookstore, cultivating an interest in military history and joining a local artillery company. He was also on the scene of the 1770 Boston Massacre. He was barely 25 when the Revolutionary War broke out in 1775, but he engineered the transport of what became the "noble train of artillery", British ordnance captured from Fort Ticonderoga in New York, which proved decisive in the British evacuation of Boston in early 1776. Knox quickly rose to become the chief artillery officer of the Continental Army. In this role, he accompanied Washington on all of his campaigns and was engaged in the major actions of the war. He established training centers for artillerymen and manufacturing facilities for weaponry that were valuable assets in winning the war for independence.