The inclosed Letter to the Count de Rochambeau is of very great Importance, & requires the utmost Secrecy in its Comunication—this Idea you will convey to the Count before its delivery—to effect when you will first converse with the Chevalr Chattalux on the Mode of its Comunication—Its Object is to inform the Count, that I have in Contemplation A very sudden Surprize of some Post of the Enemy which will be of very great Importance in our Operations, & which we have very flattering Expectations of obtaing—to cover & Support which if obtained we shall Want the Aid of the French Army—in which Case it will be necessary for the Count to push on his Troops with greater Haste than he at present intends, & by a different Rout from that now in Idea—The Dukes Legion to Advance—the Movements which I would wish to be made by the French Army are particularized in My Letter to the Count—which you will see—It will be for you to impress the Gentlemen with the Importance of their Motions to support our Operations—as it will be to little Purpose for us to obtain Advantages which we may not be able to maintain.

As the Count with his Troops is now in a very disasted part of the Country & the Tories will be very desirous to give every Information in their Power; the most profound Secrecy will be necessary—Secrecy & Dispatch must prove the Soul of Success to Enterprize—This Idea you will impress with Energy—using your best Discretion in the Mode.