New York police in riot gear raided the campuses of Columbia University and the City College of New York Tuesday night, arresting more than 200 student protesters in the latest crackdown on peaceful Palestine solidarity protests on U.S campuses. Over the past two weeks, police in the United States have arrested more than 1,200 protesters on college campuses as students set up encampments calling on schools to divest from Israel. The raid on Columbia came less than 24 hours after students occupied Hamilton Hall. It was 56 years to the day after police stormed the same hall during the historic 1968 protests at Columbia. On Tuesday night, police climbed into the barricaded building using a ladder attached to a police vehicle.