The post-Cold War period has witnessed significant maritime developments. The intensification of trade-linked development and the entry into force of the Laws of the Seas in 1994 led to state interests being increasingly identified with freedom of navigation and ocean resources, thus making maritime issues a major subset of national security. Events leading to 9/11 saw the addition of an amorphous dimension to existing threats, expanding the ambit of maritime security.

Proliferation of WMDs is a grave threat to mankind, be it their flow to ‘irresponsible states’ or to terrorists. Charged by its perception of vulnerability, the US has initiated the Proliferation Security Initiative; seeking involvement of ‘key’ states for interdiction of ‘suspect ships’ at sea. In its present form, PSI is contrary to the principle of ‘Freedom of the Seas’. Further, its operational efficacy is doubtful and it has an escalatory potential. However, bilateral arrangements as an extension of PSI may lawfully supplement global non-proliferation efforts.