Another main body of the Pequots was routed soon afterward. But that did not end the bloody harassment. A month later, a large force from Massachusetts under Captain Stoughton, together with Captain Mason’s Connecticut men, surrounded all that remained of the once powerful tribe. This occurred in a swamp at Fairfield where the remnant of the tribe had taken refuge. The warriors put up a brave fight, but the odds were too great against them. Those few who escaped this final butchery were divided among the Mohegans and the Narragansetts, never more to be called Pequots. The shores of the Sound west of Fort Saybrook were open now to settlers. A wave of migration from Boston resulted in the founding of New Haven, Stratford, Norwalk, Stamford, and other towns. The New Haven people, forming their own government, even spread across the Sound to Long Island which, of course, had long been occupied only by the Hollanders, whose traders exploited the natives there for the wampum so essential in the beaver trade. To halt this encroachment on the very nerve center of their trading territory, the Dutch hurriedly purchased from the Indians all the country that remained open between Manhattan and the oncoming English, acquiring legal title to additional lands on Long Island as far west as Oyster Bay as well as to all that triangle of territory between the Hudson and the Sound south of Norwalk. The latter comprised much of present Westchester County. However the English encroachment along the north shore of the Sound, as a practical matter, was halted no farther east than Greenwich. Only in the Narragansett country, after 1640, did the Dutch hang on to any substantial beaver trade east of Greenwich. Rhode Island, by then well populated with Englishmen, tried to keep them out. However, the Dutch simply supplied the Indians there more generously with rum and guns--in return for beaver. So did some interloping but enterprising Frenchmen. And so did some of the New Englanders themselves, for that matter. Nowhere was the competition for beaver more keen or more dangerous than in Rhode Island. English laws at the time sincerely prohibited the sale of liquor or firearms to the savages. But such laws were difficult to enforce on a wild frontier where uncontrolled profits could be scooped up so easily. Roger Williams was later to write that he had “refused the gain of thousands by such a murderous trade.” Some of his neighbors in the wilderness and even some of his own trading associates had no such scruples however.