The very essence of the American frontier is that it is the graphic line which records the expansive energies of the people behind it, and which by the law of its own being continually draws that advance after it to new conquests. This is one of the most significant things about New England's frontier in these years. That long blood-stained line of the eastern frontier which skirted the Maine coast was of great importance, for it imparted a western tone to the life and characteristics of the Maine people which endures to this day, and it was one line of advance for New England toward the mouth of the St. Lawrence, leading again and again to diplomatic negotiations with the powers that held that river. The line of the towns that occupied the waters of the Merrimac, tempted the province continually into the wilderness of New Hampshire. The Connecticut river towns pressed steadily up that stream, along its tributaries into the Hoosatonic valleys, and into the valleys between the Green Mountains of Vermont. By the end of 1723, the General Court of Massachusetts enacted,-- That It will be of Great Service to all the Western Frontiers, both in this and the Neighboring Government of Conn., to Build a Block House above Northfield, in the most convenient Place on the Lands called the Equivilant Lands, & to post in it forty Able Men, English & Western Indians, to be employed in Scouting at a Good Distance up Conn. River, West River, Otter Creek, and sometimes Eastwardly above the Great Manadnuck, for the Discovery of the Enemy Coming towards anny of the frontier Towns.[53:1] The "frontier Towns" were preparing to swarm. It was not long before Fort Dummer replaced "the Block House," and the Berkshires and Vermont became new frontiers. The Hudson River likewise was recognized as another line of advance pointing the way to Lake Champlain and Montreal, calling out demands that protection should be secured by means of an aggressive advance of the frontier. _Canada delenda est_ became the rallying cry in New England as well as in New York, and combined diplomatic pressure and military expeditions followed in the French and Indian wars and in the Revolution, in which the children of the Connecticut and Massachusetts frontier towns, acclimated to Indian fighting, followed Ethan Allen and his fellows to the north.[54:1]