Hardly had land operations commenced in Canada during the War of 1812, when British officers in North America and adjacent waters began to recommend a diversion somewhere to the southward to relieve the pressure at the north. As early as November 1812, Admiral Sir John Borlase Warren, British commander on the North American station, suggested the shores of the Gulf of Mexico as the proper place, especially New Orleans. Seizure of that city, he said, would throttle the states of Ohio, Kentucky, and Tennessee, which were then spearheading the war against Upper Canada.
Mahon, John K.
"British Strategy and Southern Indians: War of 1812,"
Florida Historical Quarterly: Vol. 44
, Article 4.
Available at: https://stars.library.ucf.edu/fhq/vol44/iss4/4