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THE APRIL 1965 MARCH & THE TURN AGAINST THE WAR

When Lyndon Johnson began sustained bombing of North Vietnam in early 1965, SDS called the first national demonstration against the war — some 25,000 people at the Washington Monument on April 17, 1965, far beyond anyone's expectations — and its president Paul Potter asked the question that defined the era: "What kind of system is it" that produces such a war?

The march transformed a small campus organization into the center of the antiwar movement; chapters multiplied from dozens to hundreds. It also placed SDS under the surveillance machinery — FBI COINTELPRO–New Left operations, military intelligence, and campus red squads — whose informers and disruption programs would shadow every chapter for the rest of the decade.