The American fleet was defeated at the Battle of Valcour Island in October 1776, although the defense of the lake was sufficient to delay a British advance against Ticonderoga until 1777. When it was clear that the British were not going to make an attempt on Ticonderoga in 1776, Gates marched some of the army south to join Washington's army in Pennsylvania, where it had retreated after the fall of New York City. Though his troops were with Washington at the Battle of Trenton, Gates was not. Always an advocate of defensive action, Gates argued that Washington should retreat further rather than attack. When Washington dismissed this advice, Gates claimed illness as an excuse not to join the nighttime attack and instead traveled on to Baltimore, where the Continental Congress was meeting. Gates had always maintained that he and not Washington should have commanded the Continental Army, an opinion supported by several wealthy and prominent New England delegates to the Continental Congress. Although Gates actively lobbied Congress for the appointment, Washington's stunning successes at Trenton and Princeton subsequently left no doubt as to who should be commander-in-chief. Gates was then sent back north with orders to assist Schuyler in the Northern Department. But in 1777, Congress blamed Schuyler and St. Clair for the loss of Fort Ticonderoga, though Gates had exercised a lengthy command in the region. Congress finally gave Gates command of the Northern Department on August 4. Gates assumed command of the Northern Department on August 19 and led the army during the defeat of British General Burgoyne's invasion in the Battles of Saratoga. While Gates and his supporters took credit for the victory, military action was directed by a cohort of field commanders led by Benedict Arnold, Enoch Poor, Benjamin Lincoln, and Daniel Morgan. Arnold in particular took the field against Gates' orders and rallied the troops in a furious attack on the British lines, suffering serious injuries to his leg. John Stark's defeat of a sizable British raiding force at the Battle of Bennington–Stark's forces killed or captured over 900 British soldiers–was also a substantial factor in the outcome at Saratoga. Gates stands front and center in John Trumbull's painting of the "Surrender of General Burgoyne" at Saratoga, which hangs in the U.S. Capitol Rotunda. By Congressional resolution, a gold medal was presented to Gates to commemorate his victories over the British in the Battles of Bennington, Fort Stanwix and Saratoga. Gold and bronze replicas of that medal are still awarded by the Adjutant General's Corps Regimental Association in recognition of outstanding service.