Meanwhile, on July 12, 1776, the British warships
HMS Phoenix and
HMS Rose advanced north up the Hudson River past the
Tappan Zee, blockading supplies to and from
New York City and landing British expeditionary forces to punish, burn and pillage villages along the river. In response, a powerful civilian "Secret Committee" was assembled to formulate a defense strategy and execute "such measures as to them shall appear the most Effectual for Obstructing the Channel of Hudson's River, or annoying the Enemy's Ship in their navigation up the said River". On July 29, General
George Washington instructed the Committee to formulate a plan of attack on the
Phoenix and
Rose, then at anchor in the
Tappan Zee. In furtherance of this,
Robert Yates (politician) (on behalf of the Committee) on August 13, 1776, wrote to George Washington that "… the Chain intended … is arrived and will form a Quarter part of the one designed for Hudson's River, the Iron for the Remainder is come to Hand, and the Smiths begin this Day to Forge it. We have agreed to fix One End of it at Fort Montgomery and the other at the Foot of a Mountain called Anthony's Nose — it will cross the River Obliquely, and for that Reason be less exposed to the Force of the Tide, & less liable to Injury from the Ships of the Enemy—the Length of the Chain will at least be 2100 Feet." By 1782, the first links of a "Great Chain" were laid across the Hudson at
West Point, New York as directed by General
George Washington. == Burning of Kingston and saving of the archives ==