The numerous small cruisers which plied in the Sound, to the great annoyance of British commerce, and the large supplies of provisions drawn from the adjacent country, for the use of the continental army, furnished great inducements to Sir Henry Clinton to direct his enterprises particularly against that state.

He also hoped to draw General Washington from his impregnable position on the North River into the low country, and thus obtain an opportunity of striking at some part of his army, or of seizing the posts, which were the great object of the campaign.

With these views, he planned an expedition against Connecticut, the command of which was given to Governor Tryon, who reached New Haven bay on the 5th of July, with about two thousand six hundred men.
General Washington was at the time on the lines, examining in person the condition of the works on Stony and Verplank's Points; in consequence of which, the intelligence which was transmitted to head quarters that the fleet had sailed, could not be immediately communicated to the governor of Connecticut, and the first intimation which that state received of its danger, was given by the appearance of the enemy.

The militia assembled in considerable numbers with alacrity; but the British effected a landing, and took possession of the town.

After destroying the military and naval stores found in the place, they re-embarked, and proceeded westward to Fairfield, which was reduced to ashes.