Occupation of Hamilton Hall Student Protests Pro-Hamas Protests Pro-Palestinian Protests Student-led Protests Student Protests at Columbia University Occupation at Columbia University Anti-Israel Protests Arrests at Columbia University Israeli Divestment Protests Student Activism Palestinian Student Protests NYU Protests Israeli-Palestinian Conflict Anti-Israel Student Protesters Gaza Solidarity Encampment Pro-Palestinian Protest Encampment Gaza Camp Protests Professor Protesting Columbia's Own Students Student Negotiations Negotiations Failure Student Suspension Pro-Palestine Encampment Pro-Hamas Students Gaza Solidarity Encampment Protest Columbia University Divestment Protests Columbia University Gaza Conflict Protests Israel-Hamas War Protests Hamilton Hall Takeover Building Occupation Student Activism at Columbia University Pro-Palestinian Protests at Columbia University Occupation of Administrative Building Palestinian Support Protests Expulsion Threat Financial Divestment Israel-Palestine Conflict Hamilton Hall Protest Negotiations Student Occupation Occupied Hamilton Hall Protests Pro-Hamas Activists at Columbia University Gaza Conflict Protests Occupation of University Buildings Student Encampment Hamilton Hall Occupation Pro-Palestine Protests Commencement Cancellation NYPD Intervention Encampment Removal Encampment Reestablishment Chemical Attack at Columbia University Encampment Student Suspensions Pro-Palestinian Protesters Pro-Palestine Protests at Columbia University Divestment Protests at Columbia University Israel-Gaza War Protests