sentences:  Companies like Dow Chemical were targeted when they came on-campus to conduct interviews because of their involvement in the manufacture or research of war material and Navy ROTC activities were also frequent target of anti-war demonstrations.After the Kent State shootings, the Northwestern student body and faculty senate voted to suspend classes starting May 6 and join a nationwide strike in protest of the Vietnam war and violence at Kent State.The student protesters demanded that campus security be disarmed, the university endowment divest itself from "war stocks", and Northwestern's NROTC program be stripped of academic credit and its facilities turned into a childcare center.