Singapore and weapons of mass destruction
| Weapons of mass destruction |
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| By type |
| By country |
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| Non-state |
| Biological weapons by country |
| Chemical weapons by country |
| Nuclear weapons by country |
| Proliferation |
| Treaties |
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From 1962 until 1971, British nuclear weapons were stored in Singapore, for delivery by aircraft at RAF Tengah, and via the frequent transiting of aircraft carriers carrying nuclear weapons and delivery aircraft. This period included the British Colony of Singapore until 1963, Malaysian Singapore, and the post-1965 Proclamation of Singapore as an independent state.
The UK was a member of the anti-communist Southeast Asia Treaty Organization, which aimed to contain the communist government of China, as part of the broader Cold War in Asia. The weapons supported power projection under the UK's East of Suez policy, as a theoretical deterrent against a China-SEATO war, and as a counterbalance to United States influence in Southeast Asia.
During World War II, Singapore was a headquarters of Imperial Japanese Army experimentation with biological weapons, under the Unit 9420 division of Unit 731.
Singapore is a signatory to the Chemical Weapons Convention, Biological Weapons Convention, Treaty on the Non-Proliferation of Nuclear Weapons, and since 1995 the Southeast Asian Nuclear-Weapon-Free Zone Treaty.