-
French Invasion of Mexico
Monroe Doctrine, isolationism -
Spanish-American War begins
Monroe Doctrine, isolationism -
Trade Wars in China
Open Door Policy -
Panama Canal authorized
Good Neighbor Policy, Roosevelt Corollary -
U.S. enters World War I
Internationalism -
U.S. enters World War II
Internationalism -
United Nations established
Collective Security -
Berlin Blockade
Containment -
Korean War begins
Collective security, containment -
Cuban missile crisis
Containment, deterrence -
U.S. commits to Vietnam War
Containment -
SALT I Pact
Detente -
Soviet invasion of Afghanistan
Collective security -
Operation Iraqi Freedom
Internationalism, collective security
