The backdrop for 20th century global conflicts is the second industrial revolution and unprecedented European dominance with technological advancements
Main causes of World War I
Militarism
Alliances
Imperialism
Nationalism
Militarism
The Anglo-German arms race, nations striving for the best military technology
Dreadnought
A battleship that eclipsed all other battleships created up to that point
Alliancesystem
Put together by Otto von Bismarck to prevent war, but ultimately failed
Imperialism
Competition for empire across the globe, including internal European imperialism
Assassination of Franz Ferdinand
Sparked the chain of events leading to World War I
Military technologies of World War I
Offensive technologies like machine guns and poison gas led to trench warfare and stalemate
The US intervention in World War I marked the first time the US played a prominent role in European and Western history in the 20th century
1905 Russian Revolution
Tsar Nicholas II released the October Manifesto, establishing a constitution and representative body (the Duma)
1917 Russian Revolution
Collapse of the Tsarist government during World War I, leading to the provisional government overthrown by the Bolsheviks under Vladimir Lenin
Leninism
An updated form of Marxism, believing a revolutionary vanguard must give the working class class consciousness, leading to a top-down communist dictatorship rather than a true communist society
War Communism
Lenin's initial attempt to implement a completely communist society, later replaced by the New Economic Policy (NEP) allowing some forms of petty capitalism
The Treaty of Versailles saddled Germany with war guilt, reparations, and other harsh terms, contributing to the wrecking of the European economy in the 1920s
The Great Depression in the late 1920s led to an upsurge in support for the Nazis and communists in Germany
Fascism
A totalitarian ideology that endorses a social hierarchy, with the means of production in private hands but mobilized by the state
Left-wing totalitarianism
Rejects social hierarchy, as seen in Bolshevism and communism
Right-wing totalitarianism
Endorses social hierarchy, as seen in fascism and Nazism, with private corporations mobilized by the state
The Nazis' theories of racial superiority and bigotry culminated in tragedies like Kristallnacht
Germany's expansion leading to World War II
Invasion of the Rhineland, Austria, Sudetenland, and Poland, aided by the Soviets in dividing Poland
Blitzkrieg strategy
Fast-moving tanks and warfare, in contrast to World War I trench warfare
Winston Churchill
Inspirational British leader who rallied support against Hitler and helped bring the US into the war
New military technologies in World War II
Jet engines
V2 rockets
Nuclear weapons
The defeat of Nazi Germany revealed a level of human barbarism not seen before or since
Dada/Dadaism
An anti-art art movement that emerged after World War I, rejecting rationalism and progress
Expressionism
An art movement that brought a poignant emotional experience, especially from veterans
World War I and World War II were instrumental in advancing women's rights and roles in European society