1. Korean War (1950–1953)

  • Nuclear Powers Involved: United States, USSR (indirect), China (non-nuclear at the time)
  • Nukes Used? No
  • Notes: The U.S. considered using nuclear weapons but did not. The USSR supported North Korea militarily but did not directly engage.

2. Vietnam War (1955–1975)

  • Nuclear Powers Involved: United States, USSR (supporting North Vietnam), China (supporting North Vietnam)
  • Nukes Used? No
  • Notes: U.S. heavy involvement; USSR and China provided substantial support to North Vietnam.

3. Sino-Indian War (1962)

  • Nuclear Powers Involved: China (not nuclear at the time), India (not nuclear at the time)
  • Nukes Used? No
  • Notes: Neither country was nuclear at the time, but both later became nuclear-armed.

4. Six-Day War (1967) & Yom Kippur War (1973)

  • Nuclear Powers Involved: Israel (undeclared nuclear capability by 1973), USSR (supporting Arab states), U.S. (supporting Israel)
  • Nukes Used? No
  • Notes: The 1973 war came close to triggering U.S.-Soviet confrontation. Israel reportedly armed nuclear weapons as a contingency.

5. Sino-Soviet Border Conflict (1969)

  • Nuclear Powers Involved: China and USSR (both nuclear)
  • Nukes Used? No
  • Notes: Direct military clashes; nuclear use was considered. USSR debated preemptive strikes on Chinese nuclear facilities.

6. Indo-Pakistani Wars (1947, 1965, 1971, 1999)

  • Nuclear Powers Involved:
    • 1971: Neither side nuclear
    • 1999 Kargil War: Both India and Pakistan were nuclear
  • Nukes Used? No
  • Notes: 1999 Kargil War was the first between two nuclear states. Both sides threatened nuclear escalation.

7. Soviet-Afghan War (1979–1989)

  • Nuclear Powers Involved: USSR
  • Nukes Used? No
  • Notes: U.S. provided extensive support to Mujahideen but did not engage directly.

8. Falklands War (1982)

  • Nuclear Powers Involved: United Kingdom
  • Nukes Used? No
  • Notes: UK naval forces reportedly carried nuclear depth charges, though not used.

9. Gulf War (1990–1991)

  • Nuclear Powers Involved: United States, United Kingdom, France
  • Nukes Used? No
  • Notes: Iraq did not possess nuclear weapons at the time but was suspected of pursuing them.

10. U.S. War in Afghanistan (2001–2021)

  • Nuclear Powers Involved: United States, UK, France (NATO), Pakistan (regional influence)
  • Nukes Used? No
  • Notes: Pakistan played a complex role; U.S. was the lead power.

11. Iraq War (2003–2011)

  • Nuclear Powers Involved: United States, United Kingdom
  • Nukes Used? No
  • Notes: Iraq did not have nuclear weapons; U.S. had nuclear superiority.

12. Russo-Georgian War (2008)

  • Nuclear Powers Involved: Russia
  • Nukes Used? No
  • Notes: First post-Cold War use of force by a nuclear state in former Soviet territory.

13. Crimea Annexation / Donbas Conflict (2014–present)

  • Nuclear Powers Involved: Russia, NATO indirectly (via Ukraine support)
  • Nukes Used? No
  • Notes: Russia has issued veiled nuclear threats since 2014.

14. Russia–Ukraine War (2022–present)

  • Nuclear Powers Involved: Russia, U.S., UK, France (supporting Ukraine), NATO (indirect)
  • Nukes Used? No (as of now)
  • Notes: Ongoing, with repeated Russian nuclear threats and heightened global alert.

Summary Table

ConflictNuclear-Armed Countries InvolvedNukes Used?Nuclear Threat Level
Korean War U.S., USSR (indirect) No High
Vietnam War U.S., USSR, China No Medium
Yom Kippur War Israel, U.S., USSR No High
Kargil War India, Pakistan No High
Falklands War UK No Low
Gulf War U.S., UK, France No Low
Iraq War U.S., UK No Low
Russia-Ukraine War Russia, NATO (indirect) No High