Has the use of nuclear weapons been threatened?
Yes, here are a few examples in history of such threats:
NUCLEAR WEAPON CRISES 1946 – 1985
| Incident | Year | Length of Crisis | Threat By | Weapons Held by US | Weapons Held by USSR |
| IRAN I | 1946 | One day | USA | 40 | 0 |
| YUGOSLAVIA | 1946 | One day | USA | 40 | 0 |
| BERLIN 1 | 1948 | 15 months | USA | 120 | 0 |
| KOREA | 1950 | 36 months | USA | 400 | ? |
| VIETNAM 1 | 1954 | 3 months | USA | 1200 | ? |
| CHINA 1 | 1954 | 8 months | USA | 1200 | ? |
| SUEZ | 1956 | 7 days | USSR/USA | 2100 | 60 |
| CHINA 2 | 1958 | 2 months | USA | 3000 | 110 |
| BERLIN 2 | 1959 | 4 months | USA | 3200 | 175 |
| BERLIN 3 | 1961 | 4 months | USA | 3600 | 240 |
| CUBA | 1962 | 2 weeks | USSR/USA | 3900 | 300 |
| VIETNAM 2 | 1969 | 3 months | USA | 4000 | 1400 |
| JORDAN | 1970 | 2 weeks | USA | 4000 | 1800 |
| ISRAEL | 1973 | 19 days | USA | 6800 | 2200 |
| IRAN 2 | 1980 | 6 months | USA | 10312 | 6846 |
Source: David Morgan, VANA