sentences:  However, Northwestern students became increasingly politically active and engaged in protests and strikes throughout the 1960s and 1970s.A chapter of Students for a Democratic Society (SDS) was founded in 1965.Demonstrations mainly stemmed from student opposition to the Vietnam War but also included protests against the draft, Navy ROTC, defense industry corporations, and the Nixon administration as well as supporting affirmative action, environmentalism, women's rights, and other instances of New Left social activism.