the St. Lawrence. Hampton was delayed by road and supply problems and his intense dislike of Wilkinson limited his desire to support his plan. Charles de Salaberry defeated Hampton's force of 4,000 at the Chateauguay River on 25 October with a smaller force of Canadian Voltigeurs and Mohawks. Salaberry's force numbered only 339, but it had a strong defensive position. Wilkinson's force of 8,000 set out on 17 October, but it was delayed by weather. Wilkinson heard that a British force was pursuing him under Captain William Mulcaster and Lieutenant Colonel Joseph Wanton Morrison and landed near Morrisburg, Ontario by 10 November, about 150 kilometres (90 mi) from Montreal. On 11 November, his rear guard of 2,500 attacked Morrison's force of 800 at Crysler's Farm and was repulsed with heavy losses. He learned that Hampton could not renew his advance, retreated to the United States and settled into winter quarters. He resigned his command after a failed attack on a British outpost at Lacolle Mills. Niagara and Plattsburgh campaigns, 1814 The Americans again invaded the Niagara frontier. They had occupied southwestern Upper Canada after they defeated Colonel Henry Procter at Moraviantown in October and believed that taking the rest of the province would force the British to cede it to them. The end of the war with Napoleon in Europe in April 1814 meant that the British could deploy their army to North America, so the Americans wanted to secure Upper Canada to negotiate from a position of strength. They planned to invade via the Niagara frontier while sending another force to recapture Mackinac. They captured Fort Erie on 3 July 1814. Unaware of Fort Erie's fall or of the size of the American force, the British general Phineas Riall engaged with Winfield Scott, who won against a British force at the Battle of Chippawa on 5 July. The American forces had been through a hard training under Winfield Scott and proved to the professionals under fire. They would deploy in a shallow U formation bringing flanking fire and well-aimed volleys against Riall's men. Riall's men were chased off the battlefield. An attempt to advance further ended with the hard-fought but inconclusive Battle of Lundy's Lane on July 25. The battle was fought several miles north of Chippewa River near Niagara Falls and is considered the bloodiest and costliest battle of the war. Both sides stood their ground as American