Final answer:
College students opposed the Vietnam War due to moral reasons and their right to free speech. The Cambodia Campaign announcement led to increased anti-war protests, resulting in the Kent State and Jackson State shootings. The Jackson State tragedy received less attention, possibly due to racial factors.
Step-by-step explanation:
The students were particularly against the Vietnam War due to moral indignation and their belief that the conflict was unjust. They were also exercising their constitutional rights of assembly and speech. The increase in anti-war demonstrations was triggered by President Nixon's announcement of the Cambodia Campaign on April 30, 1970. This event led to widespread protests on college campuses, including the one at Kent State University where four students were killed by the Ohio National Guard.
The tragedy at Jackson State University involved students protesting the invasion of Cambodia. On May 15, 1970, police opened fire on a group of protesters, killing two individuals and wounding twelve. The Jackson State shootings got less press attention than the Kent State shootings likely due to the racial dynamics of the time, with Jackson State being a historically black college, and the prevailing attitudes towards race and civil rights among both the media and the public.