Realism

Machiavelli, The Prince

1513

Seen as beginning of realism
Leaders need to understand people
Anarchic system, ego centrism

WW2 Begins

1918

Rise of Germany was a threat to liberalism
Also threatened by invasion of Poland and all the other stuff too

WW1 Begins

1919

States acting in self-interest
Alliances and cooperation do not always result in peace

E.H. Carr, The Twenty Years' Crisis

1939

International cooperation did not work
Rise of realism in international politics

WW2 ends, Cold War begins

1945

Bipolarity
Balance of powers
Cooperation for self interest

Creation of NATO

Apr 4, 1949

Security Alliances
Spheres of influence
State centrism
MAD

Cuban Missile Crisis

1962

MAD
Brinkmanship