W1958 US–UK Mutual Defence AgreementWAgreed Measures for the Conservation of Antarctic Fauna and FloraWAntarctic Treaty SystemWAnti-Ballistic Missile TreatyWANZUSWAsia and Pacific Rim Peace ConferenceWAustrian State TreatyWBaghdad PactWBiological Weapons ConventionWConstitution of JapanWConvention for the Conservation of Antarctic Marine Living ResourcesWEnvironmental Modification ConventionWFive Power Defence ArrangementsWFour Power Agreement on BerlinWHelsinki AccordsWIndo-Soviet Treaty of Friendship and CooperationWInter-American Treaty of Reciprocal AssistanceWIntermediate-Range Nuclear Forces TreatyWJoint Communiqué on the Establishment of Diplomatic RelationsWMoon TreatyWMutual Defense Treaty (United States–South Korea)WNATOWNon-Nuclear Aggression AgreementWNorth Atlantic TreatyWTreaty on the Non-Proliferation of Nuclear WeaponsWTreaty on Open SkiesWOuter Space TreatyWParis Peace AccordsWPartial Nuclear Test Ban TreatyWList of parties to the Partial Nuclear Test Ban TreatyWReykjavík SummitWTreaty of San FranciscoWSeabed Arms Control TreatyWSecurity Treaty Between the United States and JapanWShanghai CommuniquéWSimonstown AgreementWSino-American Mutual Defense TreatyWSino-British Joint DeclarationWSino-Indonesian Dual Nationality TreatyWSino-North Korean Mutual Aid and Cooperation Friendship TreatyWSoutheast Asia Treaty OrganizationWStalin NoteWSTART IWStrategic Arms Limitation TalksWTreaty establishing the European Defence CommunityWTreaty of Mutual Cooperation and Security Between the United States and JapanWTreaty of TaipeiWTreaty of TlatelolcoWU.S.–Japan AllianceWVienna Convention on Consular RelationsWVienna Convention on Diplomatic RelationsWWanfried agreementWWarsaw Pact