US Containment of Communism: Practice Questions

These are original questions written for Marlbridge, for revision and practice on this content. They are not reproduced past-paper questions. The wording below is invented for practice purposes, but the structure follows the syllabus’s own: Core Content questions on Paper 1 are three-part structured essays, split (a), (b), (c). This page has no source material; the Paper 2 document question (one question, up to seven sources, on a prescribed Core Content topic) is practised on the pages that include sources. Cambridge International holds copyright in its own papers; use these alongside the official past papers available through your school or Cambridge directly.

Related: Containment revision notes

These questions cover key question 2.5 of Cambridge IGCSE 0470 and O Level 2147, set through its three case studies: Korea, Cuba and Vietnam. Each follows the Paper 1 pattern of a descriptive (a), an explanatory (b) and an evaluative (c).

Paper 1 style: Structured Questions

Question 1: Korea, 1950–53

(a) Describe the involvement of the United Nations in the Korean War. [4]

(b) Why did China enter the Korean War in 1950? [6]

(c) ‘The Korean War was a success for the USA’s policy of containment.’ How far do you agree? Explain your answer. [10]

Worked answer

(a) Any four: after North Korea invaded on 25 June 1950 the Security Council called on members to help South Korea; the USSR could not veto this because it was boycotting the Council; a UN force was formed, mostly American but with troops from Britain and other members; it was commanded by General MacArthur; it landed at Inchon in September 1950 and pushed north. [4]

(b) Explained reasons: UN forces crossed the 38th parallel and advanced towards the Yalu River on China’s border, so China feared an American-led army on its frontier; the new communist government of Mao Zedong (in power since 1949) wanted to protect a fellow communist state; MacArthur’s statements suggested the war might be carried into China. [6]

(c) Agree: the original aim of containment was achieved — South Korea stayed non-communist; the UN showed collective action against aggression; the USA demonstrated it would fight to stop communist expansion. Disagree: the attempt to unite Korea under the South failed after China intervened; the war ended in stalemate and an armistice, not a peace; it cost about 36,000 American lives and far more Korean and Chinese; China became a lasting enemy of the USA. Judgement: a limited success — containment, not victory. [10]

Question 2: Cuba, 1959–62

(a) Describe the Bay of Pigs invasion of 1961. [4]

(b) Why did Khrushchev place nuclear missiles in Cuba? [6]

(c) ‘The USA was the winner of the Cuban Missile Crisis.’ How far do you agree? Explain your answer. [10]

Worked answer

(a) Any four: in April 1961 about 1,400 Cuban exiles, trained and equipped by the CIA, landed at the Bay of Pigs; Kennedy had approved the plan inherited from Eisenhower but refused open US air support; the expected rising against Castro did not happen; the invaders were defeated within days and most captured; it humiliated the USA and drove Castro closer to the USSR. [4]

(b) Explained reasons: to protect Cuba, the USSR’s new ally, from another American invasion after the Bay of Pigs; to close the gap in the arms race, since the USA had more long-range missiles and had placed Jupiter missiles in Turkey, close to the USSR; to gain a bargaining position, for example over Berlin; to test the young President Kennedy. [6]

(c) Agree: the Soviet missiles were removed; Kennedy appeared firm and in control; Khrushchev’s reputation suffered and he was removed in 1964. Disagree: Cuba stayed communist and the USA promised not to invade it; the USA secretly removed its missiles from Turkey; both sides had come close to nuclear war, which led to the hotline and the Partial Test Ban Treaty of 1963. Judgement: for example, a public victory for the USA but in reality a compromise. [10]

Question 3: Vietnam, 1955–75

(a) What tactics did the Viet Cong use against the USA? [4]

(b) Why did the USA become involved in Vietnam after 1954? [6]

(c) ‘The Tet Offensive was the main reason why the USA withdrew from Vietnam.’ How far do you agree? Explain your answer. [10]

Worked answer

(a) Any four: guerrilla warfare in small groups, avoiding pitched battles; hit-and-run ambushes; booby traps and mines; underground tunnel networks such as those at Cu Chi; mixing with the civilian population; supply by the Ho Chi Minh Trail through Laos and Cambodia. [4]

(b) Explained reasons: the domino theory — the fear that if South Vietnam fell, the rest of South-East Asia would follow; the Geneva Accords (1954) left a communist North under Ho Chi Minh, and the USA backed Diem in the South, who refused the 1956 elections it was feared Ho would win; containment and American credibility as an ally; the Gulf of Tonkin incident (August 1964) allowed Johnson to escalate. [6]

(c) Agree: although the Tet Offensive of January 1968 was a military defeat for the Viet Cong, it showed Americans that the war was far from won; public support fell; Johnson did not seek re-election and began peace talks. Other reasons: the rising death toll and cost; the anti-war movement and events such as My Lai; the failure of US tactics against guerrillas; Nixon’s Vietnamisation; détente with the USSR and China. Judgement: Tet was the turning point in opinion, but withdrawal came through Nixon’s policy and the Paris Peace Accords of 1973. [10]

Question 4: Comparing the case studies

‘US containment of communism was more successful in Korea than in Cuba or Vietnam.’ How far do you agree? [10]

Worked answer

A strong answer judges each case against its aim. Korea: South Korea defended, though not reunited. Cuba: Castro’s communist government survived and the Bay of Pigs failed, but the missiles were removed and the crisis did not spread communism further. Vietnam: the whole country became communist in 1975, along with Laos and Cambodia — a clear failure. Judgement: most answers will agree that Korea was the greatest success, as its specific aim was met, while showing that Cuba was a partial success. [10]

Where marks are usually lost

• Narrating each war instead of judging how effective containment was.
• Treating the Missile Crisis as a simple US victory.
• Missing the dates that frame each case: 1950–53, 1959–62, 1955–75.

Frequently asked questions

How is IGCSE History 0470 Paper 1 structured? Paper 1 (2 hours, 60 marks, 40%) has Section A on the Core Content (eight questions, answer two) and Section B on the Depth Studies (two on each, answer one). Each question is a three-part structured essay worth 4, 6 and 10 marks.

Do 0470 and 2147 share the same Core Content? Yes. For 2024–2026, Cambridge IGCSE History 0470 and O Level History 2147 have the same Core Content key questions, so these questions suit both; only the papers’ weightings and IGCSE’s third component differ.

What is the most common mistake on containment questions? Narrating each war rather than judging how effective containment was in Korea, Cuba and Vietnam.

Official syllabus

Cambridge IGCSE History (0470) and Cambridge O Level History (2147) syllabuses for 2024, 2025 and 2026, Core Content Option B key question 5 — 0470 syllabus, 2147 syllabus. Mark splits are illustrative.