The 20th century saw the rise of brutal ideological regimes that promised total solutions. The key elements of such modern regimes are: 1) masses, 2) machines and mechanisms for control, 3) the seizure of the state by mobsters (political criminals), and 4) ideological master plans.

Nineteenth-century revolutions set the agenda for the 20th century. The French Revolution ushered in a new mass politics, while the Industrial Revolution created new productive power and confidence in science and progress. Both contributed to "utopian socialism," the point of departure for further revolutions.

The 20th century began with optimism, but darker omens also appeared: the growing influence of Marxism, a wave of anarchist terrorism and assassinations, the brutal rule of worldwide imperialism, and premonitions of a coming world war.

World War I brutalized Western civilization through such innovations as poison gas, aerial bombing, and targeting of civilians.

This lecture considers implications of modern industrial war, or "total war," including use of violence against civilians, expansion of strong central states, propaganda as a tool of persuasion, and modern genocide: the massacre of a million Armenians in 1915.

Total war led to a new kind of political upheaval: total revolution. Led by Vladimir Ilyich Lenin, the Bolsheviks seized control of Russia in 1917 and began a vast revolutionary experiment.

The peace treaty of Versailles set the terms for new conflicts that inevitably arose. The little-known movements of millions of refugees displaced by the war set a dire precedent for subsequent massive "population transfers."

This lecture traces the early outlines of Soviet power: the establishment of the Cheka secret police and the Red Army, the use of propaganda campaigns, the repression of internal dissent, and, after Lenin's death, the emergence of Josef Stalin.

Josef Stalin, the "Man of Steel," made himself synonymous with the state. This lecture examines obscure beginnings, his rise to power, and the cult of personality deliberately crafted around him.

The new society of the U.S.S.R. was self-consciously revolutionary and modern, heralding the construction of a "new man" and "new woman." Foreign visitors enthusiastically hailed what they saw as a vision of the "future that works."

Coming to power in 1922 through the falsely mythologized "March on Rome," the Fascists brutalized their opponents, prepared to mobilize society in a "total state," and chanted slogans of "Believe, Obey, and Fight." The Fascist style of "Il Duce," Mussolini, was imitated by would-be dictators worldwide.

The 1930's were marked by deepening worldwide economic crisis, the rejection of liberal ideas, and the ominous revival of imperialist desires. Poet W.H. Auden called it the "low dishonest decade." The Japanese invasion of China foreshadowed World War II, while the Spanish Civil War was its dress rehearsal.

This lecture surveys the origins of the Nazi movement, its ideological roots, and its rise to power in Germany. All of these were linked to the brutalizing legacies of World War I.

Adolf Hitler, the man behind the Nazi movement, was indispensable to its success and its growing radicalism. This lecture profiles Hitler and considers the keys to his effectiveness as a dictator, in particular his capability for boundlessly cynical propaganda.

The Second World War was unleashed by Hitler in 1939 with help from Stalin. On all sides, this "perfected" total war resulted in massive civilian casualties, especially in war from the air, culminating in the opening of the atomic age.

This lecture considers the Nazis' program of mass murder against the Jews, beginning with escalating persecutions and culminating with extermination camps like Auschwitz.

No sooner had World War II ended than a new confrontation emerged: ideological blocs of countries faced off against one another in the Cold War.

After decades of civil war and struggle, Chinese Communists came to power in 1949 under the leadership of Mao Zedong. This lecture examines the society formed by the ideology of "Mao Thought," the "Little Red Book," the uniform dress of "Mao suits," and the cultural break with a rich past forced by the regime.

In 1975, Cambodian Communist leaders educated in France and led by the mysterious Pol Pot turned their own land into a social experiment. In the three years of their rule, the Khmer Rouge killed some 2 million people, more than 25 percent of Cambodians.

During the Cold War, different variants of communist regimes emerged. The German Democratic Republic was considered a success story. In the Soviet Union, the system lurched towards stagnation. North Korea enshrined its militarized isolation from the world in the ideology of "juche" or self-reliance.

As the 20th century neared its end, the spirit of the times sent mixed signals. From 1989 to 1991, Communist regimes in Eastern Europe and the Soviet Union fell with astonishing speed. Yet, as Yugoslavia began to crumble, Europe saw a reversion to the crimes that had marked World War II.

In 1994, horrific events unfolded in the central African country of Rwanda. The Hutu-dominated government organized the mass murder of the Tutsi minority. In 100 days, 800,000 people were slaughtered; the international community failed to intervene.

This lecture traces how Hussein established his personal dictatorship in Iraq, modeling himself on long-ago despots and surrounding himself with elite Republican Guards. His eight-year war against Iran resembled World War I in its ferocity.

Ultimately, what are the lessons of the 20th century's linked experiences of the promise of utopia and the reality of terror? This lecture poses the urgent question of how to be vigilant against the revival of movements such as those surveyed, and examines the growing appeal of Arab radicalism and groups like al-Qa'ida. The question of whether these global trends are likely to continue is of vital importance.