Drummond and Yeo had reliable information that the garrison of the fort numbered only 290 regulars, and believed that thirty or more heavy guns intended for Chauncey's ships under construction at Sackett's Harbor were waiting there.

The troops prepared to land shortly after midday, but a southerly breeze sprang up, which made it impossible for Yeo's ships to get close enough to the shore to provide support from their guns.

The landing force consisted of the 2nd Battalion, Royal Marines under Lieutenant Colonel James Malcolm, a company of the Glengarry Light Infantry under Captain Alexander MacMillan, a company of the Regiment de Watteville and a detachment of 200 sailors armed with boarding pikes under Captain William Mulcaster.

Lieutenant Colonel Victor Fischer, the commanding officer of the Regiment de Watteville, was in charge of the landing.

[2] While the two British frigates (HMS Prince Regent and Princess Charlotte) engaged the fort, the guns of six sloops and brigs swept the woods and landing beaches.

Mitchell's casualty return, which apparently included the U.S. regular troops only, stated the loss as 6 killed, 38 wounded and 25 missing.

"[18] General Drummond's report of the engagement to Sir George Prevost stated that the British captured "about 60 men, half of them severely wounded".

[19] Lieutenant Phillpotts of the Corps of Royal Engineers set fire to and destroyed the fort, barracks and stores which could not be moved.

Rather than launch an expedition up the Oswego River, Yeo mounted a blockade of Sackett's Harbor to prevent them reaching Chauncey.

Once Chauncey had received the guns and fitted out his squadron, he commanded the lake from the end of July 1814 until late in the year.