This 1968 news clip shows the student protests and occupation of Columbia University and the eventual clashes between students and police. This event, it is said, was a student response to Columbia University's support of the Vietnam War. 

Begins with students on the window ledges of the Columbia University library.

A large New York Police Department presence is at W 116th Street and Amsterdam Avenue in NYC.

Students and police clash near a campus wrought iron gate and fence.

Students and NYPD occupy the Columbia University campus at night.