sentences:  Called to the campus Kent State University to quell demonstrations and anti-war protests, members of the guard — in what was recently described as "one of America's most horrific campus tragedies" — killed four unarmed students and wounded several more, garnering severely negative international attention and criticism, especially as some of the victims were simply passersby.After the United States withdrew from Vietnam, the Ohio Guard, like the rest of the military, was faced by the challenges of significantly decreased funding and adapting to new missions.Increasing attention was directed towards peace-keeping and civic assistance missions.