On 15 December 1995, the Southeast Asian Nuclear-Weapon-Free Zone Treaty was signed to turn Southeast Asia into a nuclear-weapon-free zone. The treaty took effect on 28 March 1997 after all but one of the member states had ratified it. It became fully effective on 21 June 2001 after the Philippines ratified it, effectively banning all nuclear weapons in the region.Bangkok Treaty (in alphabetical order) At UNODA United Nations. Retrieved 4 September 2008.
