It is impossible to estimate here the posts which the British occupy in America. Georgia and Carolina appear to need our assistance, and the precise operation against Rhode Island must be decided on the spot; but to give a general idea, it is sufficient to say that the months of December and January should be employed at the south. As the English are obliged to station some of their vessels, frigates, merchant ships, or transports, in each of their ports, they would amount in the whole to a considerable loss.
In the month of February we would return to Newport, where we might employ ourselves in interchanges with New York; and the French sailors, exchanged for soldiers, might be sent under a flag of truce to M. d'Orvillers. Political interests might be treated of with congress, and the commander of the detachment go to Philadelphia to make arrangements with the minister plenipotentiary for the next campaign, and to lay some proposals before congress and General Washington. I should propose sending for deputies from the different savage nations, making them presents, endeavouring to gain them over from the side of the English, and to revive in their hearts that ancient love of the French nation which, at some future day, it may be important for us to possess.
It is needless to say here, that if we should wait until the month of October, the season would be too far advanced to think of Rhode Island, but the southern operations would be equally practicable, and their success more certain, as we should take the enemy by surprise.
In that case, instead of proceeding to Newport, we should winter at Boston, where we should be well received, and provided with every accommodation. We could open the campaign when we pleased, and might make preparations beforehand for a great expedition against Rhode Island, procuring, at the same time, from the inhabitants of the ports of the north of Boston, and especially that of Marble Head, all the information they may have acquired about Halifax.
But let us suppose ourselves established at Newport. The campaign opens by the close of April, and the British will be in no haste to quit New York. The fear of leaving himself unprotected on our side will prevent his executing any design against the forts on the North River. It may even be in our power to assist General Washington in making an attack on New York. Count d'Estaing, before his departure, thought that he had discovered the possibility of a passage through the Sound. This question I leave to naval officers; but, without being one myself, I know that Long Island might be captured, the troops driven off, and, whilst General Washington made a diversion on his side, batteries might be erected that would greatly annoy the garrison of New York. At all events, preparations should be made to act against Halifax in the month of June. With the claims which the other expedition would give us, I will pledge myself that we should be assisted in this by the Americans. I could find at Boston, and in the northern parts, trust-worthy persons who could go to Halifax for us, and procure all the necessary information; the town of Marble Head, in particular, would furnish us with excellent pilots. The inhabitants of the north of New Hampshire and Cascobay should be assembled under the command of their general, Stark, who gained the victory at Bennington, ready to march, if circumstances require it, by the route of Annapolis. The country is said to be inhabited by subjects ill affected to British government; ~{7} some of them have entered into a correspondence with the Americans, and have given assurances that they will form a party in our favour.
With regard to ourselves, I suppose that we sail the 1st of June, and that we are accompanied by some continental frigates, and such private vessels as might be collected in Boston. Congress would undoubtedly furnish us with as many troops as we should require, and those very brigades which lately belonged to my division, and whose sole object at present is to keep the enemy at Rhode Island in check, having no longer any employment, would be able to join us without impairing the main army. They would come the more willingly, as the greater part of the regiments belonging to the northern part of New England would be averse to crossing the Hudson River, and would prefer a service more advantageous to their own country.~{8} We should find at Boston cannon and mortars. Others, if necessary, might be sent from Springfield, and the corps of American artillery is tolerably good.
The enemy would suspect our designs the less, as their ideas run wholly upon an invasion of Canada; the movements of the militia in the north would be considered as a plan for uniting with us at Sorel, near the River St. Francis, as we ascended the St. Lawrence: this opinion, which, with a little address, might be strengthened, would awaken apprehensions and excite disturbances at Quebec;~{9} and if a vessel of war should by chance be at Halifax ready for sea, they would probably despatch it to the threatened colony.
I have never seen the town of Halifax, but those persons who, before the war, were in the English service, and had spent most of the time in garrison, inform me that the great point is, to force to the right and left the passage of George's Island, and that a landing might be effected without difficulty, either on the side towards the eastern battery, in order to seize that battery and Fort Sackville, or, which appears to be a shorter way, on the side towards the town. The northern suburb, where the magazines are, is but slightly defended. The basin, where vessels are repaired, might also be secured. Several officers, worthy of confidence, have assured me, that Halifax is built in the form as of an amphitheatre; that all the houses might be cannonaded by the vessels that had forced the passage, and in that case, the town would compel the garrison to surrender. As the troops might destroy all the works on the shore, and the vessels of war easily carry the batteries on the islands, I am well persuaded, and the accounts of all who have been there convince me still more, that Halifax would be unable to withstand the united power of our forces and those of America.~{10}
The idea of a revolution in Canada is gratifying to all good Frenchmen; and if political considerations condemn it, you will perceive that this is to be done only by suppressing every impulse of feeling. The advantages and disadvantages of this scheme demand a full discussion, into which I will not at present enter. Is it better to leave in the neighbourhood of the Americans an English colony, the constant source of fear and jealousy, or to free our oppressed brethren, recover the fur trade, our intercourse with the Indians, and the profit of our ancient establishments, with out the expenses and losses formerly attending them? Shall we throw into the balance of the new world a fourteenth state, which would be always attached to us, and which, by its situation, would give us a superiority in the troubles that may, at some future day, agitate America? Opinions are very much divided on this topic. I know yours, and my own is not unknown to you; I do not, therefore, dwell on it, and consider it in no other light than as a means of deceiving and embarrassing the enemy. If, however, it should at any time be brought under consideration, it would be necessary to prepare the people beforehand; and the knowledge which I was obliged to obtain when a whole army was about to enter that country has enabled me to form some idea of the means of succeeding there But to return to Nova Scotia: part of the American troops, who will accompany us, and such of the inhabitants as take up arms in our favour, might be left there as a garrison. It would be easy to destroy or take possession of the English establishments on the banks of Newfoundland, and after this movement we should direct our course according to circumstances. Supposing that we could return to Boston or Rhode Island during the month of September, and that New York had not yet been taken, we might still be enabled to assist General Washington. Otherwise St. Augustine, the Bermudas, or some other favourable points of attack, might engage our attention; on the other hand, if we should be ordered home, we might reach France in three weeks or a month from the banks of Newfoundland, and alarm the coasts of Ireland on our way.
If the September plan, which combines all advantages, appears too near at hand, if it were decided even not to send us in October, it would be necessary to delay our departure until the end of January. In this case, as in the former, we should be preceded fifteen days only by corvettes; we should pass the month of April in the south, attack Rhode Island to May, and arrive at Halifax the last of June. But you are aware that the autumn is, on many accounts, the most favourable time for our departure; at all events, you will not accuse me of favouring this opinion from interested motives, as a winter at Boston or Newport is far from equivalent to one spent at Paris.~{11}