The
Continental Army, which had
invaded Quebec in September 1775, suffered a severe blow in the disastrous
attack on Quebec City on New Year's Eve in 1775. Following that loss,
Benedict Arnold and the remnants of the army besieged Quebec until May 1776. Early on May 6, three
Royal Navy ships sailed into Quebec Harbour. Troops on these ships were immediately sent into the city and, not long after, General
Guy Carleton formed them up and marched them out to the American siege camp. General
John Thomas, then in command of the American forces, had already been making arrangements to retreat, but the British arrival threw his troops into a panic. He led a disorganized retreat that eventually reached
Sorel on about May 18.
British forces at Trois-Rivières Throughout the month of May and into early June, ships carrying troops and war supplies continued to arrive at Quebec. By June 2, Carleton had added the
9th,
20th,
29th,
53rd and
60th regiments of foot, along with General
John Burgoyne, to his command. Also arriving in the fleet were
Hessian troops from
Brunswick commanded by
Baron Riedesel. After the Americans' flight early in May, Carleton took no significant offensive steps but on May 22, he sent ships carrying elements of the 47th and 29th Foot to Trois-Rivières under Allan Maclean's command. Brigadier General
Simon Fraser led more forces to Trois-Rivières on June 2. By June 7, the forces on the ground at Trois-Rivières had grown to nearly 1,000, and 25 ships carrying additional troops and supplies were anchored in the river near the village and for several miles upriver.
American arrangements Since Thomas's retreat was instigated by the early arrival of three ships of the fleet carrying only a few hundred troops, he was unaware of the true size of the British army. In a war council at Sorel on May 21, which included representatives of the
Second Continental Congress, a decision was reached to make a stand at Deschambault, between Trois-Rivières and Quebec. This decision was reached based on sketchy reports and rumors of the British troop strengths and was dominated by the non-military Congressional representatives. Thomas contracted smallpox on May 21, from which he died on June 2. He was briefly replaced by Brigadier General
William Thompson, who relinquished command to General
John Sullivan when he arrived on June 5 at Sorel with further reinforcements from
Fort Ticonderoga. On June 5, just hours before Sullivan's arrival, Thompson sent 600 troops under the command of Colonel
Arthur St. Clair toward Trois-Rivières with the goal of surprising and beating back the small British force believed to be there. Sullivan, on his arrival at Sorel, immediately dispatched Thompson with an additional 1,600 men to follow. These forces caught up with St. Clair at
Nicolet, where defenses against troop movements on the river were erected the next day. On the night of June 7, Thompson, St. Clair, and about 2,000 men crossed the river, landing at Pointe du Lac, a few miles above Trois-Rivières. ==Battle==