Anti-war marches and other protests, such as the ones organized by Students for a Democratic Society (SDS), attracted a widening base of support over the next three years, peaking in early 1968 after the successful Tet Offensive by North Vietnamese troops proved that war's end was nowhere in sight.
Answer: Which of these is one reason that U.S. immigrants settled in the North? It offered free land. They were attracted by the good climate. They were attracted by the railroad system, slavery was also non existant in the north a long time ago