Proliferation Security Initiative

The Proliferation Security Initiative (PSI) is an international effort led by the United States to interdict transfer of banned weapons and weapons technology. The PSI is primarily focussed on combatting proliferation of nuclear, chemical, and biological weapons and materials. The initiative is designed to work within the framework of other international agreements and the role of participating countries varies. The PSI consists of 15 core countries, which alongside the US include Russia, Japan, France, Germany and Britain. A further 60 countries have agreed to cooperate on an ad hoc basis.

Related Topics:
Interdict - Nuclear - Chemical - Biological weapons - Ad hoc

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In September 2005, China announced that it would not be participating in PSI due to concerns over its legality.

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