Early Cold War & Korean War – Guided Notes Worksheet
1. Mutually Assured Destruction (MAD)
MAD = M________________ A________________ D________________.
If one nation launched nuclear missiles, the other would launch ________.
→ No winners, only ____________________.
MCQ #1 – MAD
What prevented the US and USSR from starting a direct war during the early Cold War?
A. The Treaty of Versailles
B. Mutually Assured Destruction
C. The Marshall Plan
D. The Truman Doctrine
Cartoon Message: The world must stop the spread of ________________________.
2. Nuclear Arms Race
By 1949 both nations had ________ weapons.
In the 1950s they developed ________ to deliver them.
Nuclear weapons were cheaper than maintaining a large ________.
What prevented their use? → ______________________________
Both sides began ________________________ nuclear weapons.
3. Nuclear Proliferation
Proliferation = spread of ________________________.
USSR shared with Warsaw Pact; US shared with ________.
More nations = higher risk of ________________________.
One consequence: __________________________________________
Short Answer – Causes
Why did both the US and USSR choose to share nuclear technology with their allies during the Cold War?
4. Fallout Shelters
Built to protect Americans from ________________________.
Often located in ________________ or ________________.
In reality, they offered ________ protection.
MCQ #2 – Fallout Shelters
Fallout shelters were designed to protect Americans from:
A. Natural disasters
B. Domestic terrorism
C. A potential nuclear attack
D. Soviet satellites
5. Fall of Nationalist China (1949)
Communist leader: ________________________.
Nationalist leader: ________________________ (supported by US).
In 1949, the ________________________ won.
US policy that supported Nationalists: ________________________ Doctrine.
Was it successful? __________________________________________
6. Domino Theory
Fear: If one nation fell to communism, ________________________.
Truman saw communism in ________ Asia as a threat.
To stop the “dominoes,” the US sent _______ and _______ (Truman Doctrine).
Short Answer Question:
If you were a US policymaker in 1950, what evidence might convince you that the Domino Theory was becoming a real threat?
(Use examples from Asia or Cold War events.)
7. Korean War Overview
In 1950, NK invaded SK to unify under ________________________ rule.
Truman responded by ________________________.
Justified by the ________ Doctrine.
UN condemned the invasion and sent ________.
MCQ #3 – Korean War
What was the main reason for US intervention in the Korean War?
A. North Korea sold uranium to the USSR
B. Truman feared communism would spread through Asia
C. South Korea invaded Cambodia
D. North Korea tried to form a democratic government
8. General Douglas MacArthur
Pushed NK forces to the ________–Chinese border.
China entered because they felt ________________________.
MacArthur wanted to expand war into ________ and use ________________________.
Truman feared ________.
MacArthur was ________________________ in 1951.
9. End of the Korean War
Armistice signed in 1953.
No ________ was signed; war not officially over.
Border remained at the ________ Parallel.
DMZ created between NK & SK.
Consequence: No major changes; 38th Parallel and DMZ remained.
10. Nuclear Football
The “nuclear football” allows the President to authorize a ________________________ while away from command centers.