Black United Students (BUS) is an African-American student organization, active since the 1960s. Many references within the collection are made to their 1968 campus walkout. In November 1968, the Oakland (CA) Police Department came to Kent State to recruit. Members of BUS and SDS opposed allowing OPD on campus. (Oakland was the home of the Black Panthers, a militant black organization, which frequently interacted with the police.) The two groups attempted to block administrative offices and prevent recruitment through a sit-in. Students were suspended, despite demands that no action be taken against them. BUS responded by staging a massive one week walkout in which 250 black students marched and left campus. SDS marched along side BUS, though they did not leave the campus.