On hearing that the Americans had recaptured Frenchtown, British Brigadier General Henry Procter, commander of the British forces around Detroit, marched with his troops from Fort Malden and crossed the Detroit River from Upper Canada, invading Michigan in strength. His army consisted of 597 regulars from the 41st Regiment of Foot and Royal Newfoundland Fencibles, joined by about 800 Indians. This force linked up with elements of the Essex militia who had fallen back after their initial defeat on January 18. Shawnee leader Tecumseh was in the area, but he was not present at the Battle of Frenchtown. He left command of the Native Americans to Wyandot chiefs Roundhead and Walk-in-the-Water. The Indians included Shawnee, Potawatomi, Ottawa, Chippewa, Delaware, Miami, Winnebago, Creek, Sauk, and Fox tribes. Procter's artillery consisted of six light 3-pounder cannons drawn on sledges, manned by men from the Canadian Provincial Marine under the command of Lieutenant Frédérick Rolette. Procter halted about north of the River Raisin to prepare for battle on January 21.