-The United States emerged from World War I as a global power.
-They joined the League of Nations and worked as a mediator to settle international disputes peacefully.
-The US pursued a policy of isolation as it withdrew troops from Europe and reduced its military spending.
-The US experienced economic growth and prosperity during this period known as the "Roaring Twenties," characterized by increased consumerism and cultural change.
After World War 2:
-The United States emerged as a global superpower.
-The US played a significant role in rebuilding war-torn Europe through the Marshall Plan and the formation of international institutions such as the United Nations.
-The US adopted a policy of containment to curb the spread of communism and became involved in conflicts such as the Korean War and the Vietnam War.
-The US experienced rapid economic growth and technological advancements during this period, leading to increased prosperity and affluence.