Why did Saigon only fall in 1975?

The Paris accords ended American combat but the two Vietnamese sides fought on until the north entered Saigon in 1975.

How do you tell whether a war is a proxy war?

Ask whether the combatants depend mainly on outside powers for arms, advisers and money rather than only contesting local power.

S5 History The Cold War in Asia, Paper 4: partition, Vietnam and the ending

2026-11-02

Tutor Prep Guide · Primary English

Paper 4 moves from the 38th parallel and the two states of 1948 through Dien Bien Phu, Tonkin, Tet and the 823 days after the Paris accords, counts two years to the Soviet collapse and twelve from Sino-American relations, and ends on the idea that Vietnam was a purely civil war.

Reminders　A partition line is not a border, the end of fighting and the fall of a regime are different dates, and a proxy war is read from its backers.

01　Paper details (check answers afterwards)

Item	Detail
Questions	10
Suggested time	25
Difficulty mix	Foundation 4 · Intermediate 3 · Challenge 2 · Error redo 1
Chapter	Chapter: S5 History: The Cold War in Asia
Level	S5

02　Questions (10 items)

FoundationAfter the Second World War, which line divided the Soviet and American zones in Korea?
FoundationWhich state was proclaimed in the south of the peninsula on 15 August 1948?
FoundationWhich 1954 battle forced France to negotiate over Indochina?
FoundationThe Paris Peace Accords were signed on 27 January 1973 and Saigon fell on 30 April 1975. How many days apart?
IntermediateThe Gulf of Tonkin resolution passed in 1964 and large-scale ground deployment followed in 1965. How many years apart?
IntermediateThe Berlin Wall fell in 1989 and the Soviet Union dissolved in 1991. How many years apart?
IntermediateWith which country did China establish diplomatic relations in 1992, costing Taiwan a major ally?
ChallengeThe 1968 Tet Offensive failed militarily. What was its political effect?
ChallengeChina and the United States established relations in 1979 and the Soviet Union dissolved in 1991. How many years apart?
Error redoError repair: a student wrote that the Vietnam War was purely a civil war. Which point best refutes that?

03　Answers and one-line notes

#	Answer	One-line note
1	The 38th parallel	The Soviet Union took the surrender in the north and the United States in the south, and that line later became the border between two states.
2	The Republic of Korea	In September of the same year the north declared the Democratic People’s Republic of Korea, making the division permanent.
3	Dien Bien Phu	Once the fortress fell the Geneva Conference quickly agreed a ceasefire and French power withdrew from Indochina.
4	823 days	Subtracting the dates from 27 January 1973 to 30 April 1975 gives 823 days, so the war ran on for over two years after the American withdrawal.
5	1 year	1965 minus 1964 is 1; authorisation and actual deployment came almost together, so the war escalated fast.
6	2 years	1991 minus 1989 is 2; the Cold War order in Europe collapsed first and the Soviet Union itself followed.
7	South Korea	Sino-South Korean relations were a marker of East Asian realignment after the Cold War and affected inter-Korean ties too.
8	Anti-war feeling surged and Johnson dropped his re-election bid	Guerrillas reaching cities and the embassy made the American public doubt the war could be won, which turned the tide.
9	12 years	1991 minus 1979 is 12; the strategic triangle formed by China and the United States reshaped the Cold War within a dozen years.
10	Each side was backed by a superpower, making it a proxy war	Each side was armed and advised by a superpower, so the war was a Cold War proxy conflict fought in Asia.

04　What to do after marking

After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
Repeat the same item two days later; move to the next paper only when both attempts are correct.
Parents only need the answer and note columns; there is no need to explain every item.

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