 On 1 July, Yeo attempted to destroy "General Pike" while she was fitting out by mounting a raid on Sacket's Harbor in small boats, but called off the attack fearing correctly that deserters had alerted the Americans.Chauncey's full squadron put out on 21 July.They first embarked a battalion of 250 infantry under Colonel Winfield Scott and contemplated an assault on the British defensive positions at Burlington Heights at the western end of the lake.