The following countries have either attempted to develop, actually built, or bought weapons of mass destruction, including biological, chemical, and nuclear weapons.
The following countries have either attempted to develop, actually built, or bought weapons of mass destruction, including biological, chemical, and nuclear weapons.
Legend:
| Programs per country | Biological | Chemical | Nuclear |
|---|---|---|---|
| Albania | N | F | N |
| Algeria | N | N | A |
| Argentina | N | N | A |
| Australia | N | F | A |
| Brazil | N | N | A |
| Bulgaria | N | F | F |
| Canada | F | F | F |
| China | P | F | C |
| Egypt | N | C | N |
| France | F | F | C |
| Germany | F | F | S |
| India | N | F | C |
| Iran | N | F | D |
| Iraq | F | F | A |
| Israel | P | P | P |
| Italy | F | F | S |
| Japan | F | F | A |
| Kazakhstan | N | N | F |
| Libya | N | F | A |
| Mexico | N | N | A |
| Myanmar | N | P | P |
| Netherlands | N | F | S |
| North Korea | C | C | C |
| Pakistan | N | N | C |
| Philippines | N | N | A |
| Poland | N | N | F |
| Rhodesia | F | F | N |
| Romania | N | N | A |
| Russia | C | C | C |
| Saudi Arabia | N | N | P |
| South Africa | F | F | F |
| South Korea | N | N | A |
| Spain | N | N | A |
| Sweden | N | F | A |
| Switzerland | N | F | A |
| Syria | N | C | P |
| Taiwan | P | F | A |
| Ukraine | N | N | F |
| United Kingdom | F | F | C |
| United States | F | F | C |