1950-1953, Cold War proxy conflict, ended in stalemate at 38th parallel
Understanding Cold War containment policy
1955-1975, longest US military engagement of the 20th century
Understanding limits of US military intervention
The Korean War (1950-1953) was a 3-year conflict that ended in a stalemate with Korea divided at the 38th parallel. The Vietnam War (1955-1975) lasted 20 years, was far more controversial domestically, and ended with a US withdrawal and North Vietnamese victory.
The Korean War preserved South Korea as a thriving democracy. The Vietnam War was longer, costlier in lives, and ended in US defeat. Both were Cold War proxy conflicts but had very different outcomes and legacies.
Choose Korean War if
Understanding Cold War containment policy
Choose Vietnam War if
Understanding limits of US military intervention
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| Metric | Korean War | Vietnam War | Diff |
|---|---|---|---|
| Duration(years) | 3 | 20 | -85% |
| US Military Deaths | 36,574 | 58,220 | -37% |
| Total Deaths (all sides) | ~2.5 Million | ~3.5 Million | -29% |
| US Troops Deployed (peak) | 326,000 | 549,500 | -41% |
| Cost (inflation-adjusted)(USD) | $389 Billion | $1 Trillion |
Vietnam War vs Korean War
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| -61% |
| Countries Involved | 21 UN nations | Primarily US + South Vietnam | +950% |
All figures sourced from publicly available data. Last updated May 2026.
Korean War
3 years (1950-1953)
Vietnam War
20 years (1955-1975)
Korean War
36,574
Vietnam War
58,220
Korean War
~2.5 million
Vietnam War
~3.5 million
Korean War
Stalemate (Korea divided)
Vietnam War
US withdrawal / North Vietnam victory
Korean War
Minimal
Vietnam War
Massive anti-war movement
Korean War
UN coalition force
Vietnam War
Primarily US + South Vietnam
The Korean War lasted 3 years and ended in a stalemate preserving South Korea. The Vietnam War lasted 20 years and ended in US defeat. The Korean War had broad UN support while Vietnam was primarily a US-South Vietnam effort. Vietnam generated massive domestic opposition; Korea did not.
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| Attribute | ||
|---|---|---|
| Duration(years) | 3 | 20 |
| US Military Deaths | 36,574 | 58,220 |
| Total Deaths (all sides) | ~2.5 Million | ~3.5 Million |
| US Troops Deployed (peak) | 326,000 | 549,500 |
| Cost (inflation-adjusted)(USD) | $389 Billion | $1 Trillion |
| Countries Involved | 21 UN nations | Primarily US + South Vietnam |
Side-by-side comparison of numeric attributes