On the part of France, an invasion of the Acadian peninsula seemed more than likely. Honor demanded of her that, having incited the Acadians to disaffection, and so brought on them the indignation of the English authorities, she should intervene to save them from the consequences. Moreover the loss of the Acadian peninsula had been gall and wormwood to her; and in losing it she had lost great material advantages. Its possession was necessary to connect Canada with the Island of Cape Breton and the fortress of Louisbourg. Its fertile fields and agricultural people would furnish subsistence to the troops and garrisons in the French maritime provinces, now dependent on supplies illicitly brought by New England traders, and liable to be cut off in time of war when they were needed most. The harbors of Acadia, too, would be invaluable as naval stations from which to curb and threaten the northern English colonies. Hence the intrigues so assiduously practised to keep the Acadians French at heart, and ready to throw off British rule at any favorable moment. British officers believed that should a French squadron with a sufficient force of troops on board appear in the Bay of Fundy, the whole population on the Basin of Mines and along the Annapolis would rise in arms, and that the emigrants beyond the isthmus, armed and trained by French officers, would come to their aid. This emigrant population, famishing in exile, looked back with regret to the farms they had abandoned; and, prevented as they were by Le Loutre and his colleagues from making their peace with the English, they would, if confident of success, have gladly joined an invading force to regain their homes by reconquering Acadia for Louis XV. In other parts of the continent it was the interest of France to put off hostilities; if Acadia alone had been in question, it would have been her interest to precipitate them.
Her chances of success were good. The French could at any time send troops from Louisbourg or Quebec to join those maintained upon the isthmus; and they had on their side of the lines a force of militia and Indians amounting to about two thousand, while the Acadians within the peninsula had about an equal number of fighting men who, while calling themselves neutrals, might be counted on to join the invaders. The English were in no condition to withstand such an attack. Their regular troops were scattered far and wide through the province, and were nowhere more than equal to the local requirement; while of militia, except those of Halifax, they had few or none whom they dared to trust. Their fort at Annapolis was weak and dilapidated, and their other posts were mere stockades. The strongest place in Acadia was the French fort of Beauséjour, in which the English saw a continual menace.
Their apprehensions were well grounded. Duquesne, governor of Canada, wrote to Le Loutre, who virtually shared the control of Beauséjour with Vergor, its commandant: "I invite both yourself and M. Vergor to devise a plausible pretext for attacking them [the English] vigorously."243 Three weeks after this letter was written, Lawrence, governor of Nova Scotia, wrote to Shirley from Halifax: "Being well informed that the French have designs of encroaching still farther upon His Majesty's rights in this province, and that they propose, the moment they have repaired the fortifications of Louisbourg, to attack our fort at Chignecto [Fort Lawrence], I think it high time to make some effort to drive them from the north side of the Bay of Fundy."244 This letter was brought to Boston by Lieutenant-Colonel Monckton, who was charged by Lawrence to propose to Shirley the raising of two thousand men in New England for the attack of Beauséjour and its dependent forts. Almost at the moment when Lawrence was writing these proposals to Shirley, Shirley was writing with the same object to Lawrence, enclosing a letter from Sir Thomas Robinson, concerning which he said: "I construe the contents to be orders to us to act in concert for taking any advantages to drive the French of Canada out of Nova Scotia. If that is your sense of them, and your honor will be pleased to let me know whether you want any and what assistance to enable you to execute the orders, I will endeavor to send you such assistance from this province as you shall want."245
The letter of Sir Thomas Robinson, of which a duplicate had already been sent to Lawrence, was written in answer to one of Shirley informing the Minister that the Indians of Nova Scotia, prompted by the French, were about to make an attack on all the English settlements east of the Kennebec; whereupon Robinson wrote: "You will without doubt have given immediate intelligence thereof to Colonel Lawrence, and will have concerted the properest measures with him for taking all possible advantage in Nova Scotia itself from the absence of those Indians, in case Mr. Lawrence shall have force enough to attack the forts erected by the French in those parts, without exposing the English settlements; and I am particularly to acquaint you that if you have not already entered into such a concert with Colonel Lawrence, it is His Majesty's pleasure that you should immediately proceed thereupon."246
The Indian raid did not take place; but not the less did Shirley and Lawrence find in the Minister's letter their authorization for the attack of Beauséjour. Shirley wrote to Robinson that the expulsion of the French from the forts on the isthmus was a necessary measure of self-defence; that they meant to seize the whole country as far as Mines Basin, and probably as far as Annapolis, to supply their Acadian rebels with land; that of these they had, without reckoning Indians, fourteen hundred fighting men on or near the isthmus, and two hundred and fifty more on the St. John, with whom, aided by the garrison of Beauséjour, they could easily take Fort Lawrence; that should they succeed in this, the whole Acadian population would rise in arms, and the King would lose Nova Scotia. We should anticipate them, concludes Shirley, and strike the first blow.247
He opened his plans to his Assembly in secret session, and found them of one mind with himself. Preparation was nearly complete,