In 1964, after the United States launched major air strikes against Vietnam, there was a wave of protest against the war within the US, and young students threw themselves passionately into anti-war demonstrations. It reached a boiling point in 1967, and nowhere were the protests more fervent than Berkeley.
1964 年美軍大規模轟炸越南後，美國國內出現反對聲浪，年輕學子投入激烈的反戰示威，1967 年到達沸點，而柏克萊正是反戰最激烈的學校。