Before the Treaty of Utrecht, the present Nova Scotia, New Brunswick, and a part of Maine were collectively called Acadia by the French; but after the treaty gave Acadia to England, they insisted that the name meant only Nova Scotia. The English on their part claimed that the cession of Acadia made them owners, not only of the Nova Scotian peninsula, but of all the country north of it to the St. Lawrence, or at least to the dividing ridge or height of land.

This and other disputed questions of boundary were to be settled by commissioners of the two powers; but their meeting was put off for forty years, and then their discussions ended in the Seven Years' War. The claims of the rival nations were in fact so discordant that any attempt to reconcile them must needs produce a fresh quarrel. The treaty had left a choice of evils. To discuss the boundary question meant to renew the war; to leave it unsettled was a source of constant irritation; and while delay staved off a great war, it quickly produced a small one.

France and England in North America, Part VII: A Half-Century of Conflict, Vol 1 — Part 120

The river Kennebec, which was generally admitted by the French to be the dividing line between their possessions and New England,[228] was regarded by them with the most watchful jealousy. Its headwaters approached those of the Canadian river Chaudière, the mouth of which is near Quebec; and by ascending the former stream and crossing to the headwaters of the latter, through an intricacy of forests, hills, ponds, and marshes, it was possible for a small band of hardy men, unencumbered by cannon, to reach the Canadian capital,--as was done long after by the followers of Benedict Arnold. Hence it was thought a matter of the last importance to close the Kennebec against such an attempt. The Norridgewock band of the Abenakis, who lived on the banks of that river, were used to serve this purpose and to form a sort of advance-guard to the French colony, while other kindred bands on the Penobscot, the St. Croix, and the St. John were expected to aid in opposing a living barrier to English intrusion. Missionaries were stationed among all these Indians to keep them true to Church and King. The most important station, that of the Norridgewocks, was in charge of Father Sebastien Rale, the most conspicuous and interesting figure among the later French-American Jesuits.

France and England in North America, Part VII: A Half-Century of Conflict, Vol 1 — Part 120