Proliferation Security Initiative

Official Account of the Proliferation Security Initiative

[Proliferation Security Initiative @ProliferationI]

The US and Norway co-hosted the Nordic-Baltic + Regional #PSI Engagement on 9-11 June in Oslo, helping to advance counter-proliferation interdiction, export control, and sanctions implementation efforts.
https://t.co/lrsnlY1fWe

[State ACN Bureau @StateACN]

The U.S. & Norway co-hosted the Nordic-Baltic Regional #SecurityProliferationInitiative Engagement in Oslo this week. 60+ civilian, customs, and law enforcement & military leaders from 13 nations came together to sharpen counterproliferation capabilities and stop the spread of #WMD. 🌎 https://t.co/bAkIGV3Pb2

[State ACN Bureau @StateACN]

26 countries gathered at PSI exercise Pacific Shield 2025 in Tokyo to prevent the spread of WMDs and their means of delivery. Grateful for the commitment of @ProliferationI and counterproliferation collaboration of all PSI partners! See Joint Statement: https://t.co/6tQKOgGolZ

[Proliferation Security Initiative @ProliferationI]

👏 Congratulations to 🇯🇵 for successfully hosting PSI Exercise Pacific Shield 2025! Japan’s APER membership reinforces its commitment to global security as it worked with partners to enhance interdiction capabilities #PSI #PacificShield2025

https://t.co/UpXaRALKhF

[MOFA of Japan @MofaJapan_en]

Japan hosted the Proliferation Security Initiative (PSI) exercise “Pacific Shield 25” and the Operational Experts Group (OEG) meeting. Approximately 150 participants from 26 countries confirmed their commitment to enhancing the Asia-Pacific states' cooperation and capabilities to prevent the proliferation of weapons of mass destruction(WMD).

https://t.co/690FxZL5D9

[Aff. stratégiques-sécurité-désarmement@francediplo @francediplo_ASD]

📆 This week, France 🇫🇷 participated in a Proliferation Security Initiative (@ProliferationI) event held in Tokyo. #PSI

[Proliferation Security Initiative @ProliferationI]

Looking forward to 🇯🇵 hosting PSI Exercise Pacific Shield 2025 in December. Another example of the international community working together through the PSI against the proliferation of WMD!

[MOFA of Japan @MofaJapan_en]

Japan will host the Proliferation Security Initiative (PSI) Maritime Interdiction exercise "Pacific Shield 25" and a PSI Operational Experts Group (OEG) meeting from December 2 to 5. PSI is an international effort to prevent the proliferation of WMD.

https://t.co/uykQEjwEtd

[Proliferation Security Initiative @ProliferationI]

Proliferation financing poses a threat to international peace and security. Encouraging to see PSI-endorsing states such as Australia release advice like this!

[Ambassador - Arms Control & Counter-Proliferation @AusArmsControl]

The Australian Sanctions Office recently released an advisory note to help business and individuals comply with Australian sanctions laws and reduce proliferation financing risk. A strong step in countering WMD and protecting Australia’s financial system. https://t.co/CFeWKiKTE9

[Proliferation Security Initiative @ProliferationI]

Another great PSI engagement highlighting the value of countries working together to keep the world safe from WMD proliferation. This demonstrates the benefits of PSI and why 116 states have chosen to participate!

[State ACN Bureau @StateACN]

This week, the US and Finland co-hosted the Nordic/Baltic Proliferation Security Initiative Regional Engagement with 71 leaders from 13 countries. They promoted measures to advance counterproliferation interdictions, export controls, sanctions implementation. #PSI https://t.co/RhFi3zrLeG

[Proliferation Security Initiative @ProliferationI]

Thanks France for hosting PSI Exercise ‘Golden Isles’ in Toulon 28-29 April under the framework of the PSI’s Mediterranean Initiative — a regional format which continues to strengthen cooperation and improve collective capabilities to prevent WMD proliferation in that region.

[France Diplomacy 🇫🇷🇪🇺 @francediplo_EN]

#PSI | 🇫🇷 hosted the ‘Golden Isles’ exercise in Toulon. 14 States exchanged views on how to strengthen their cooperation in the Mediterranean against the proliferation of weapons of mass destruction.

🇫🇷 performed a live demonstration aboard PHA Tonnerre.

[Proliferation Security Initiative @ProliferationI]

Thanks Slovenia and US for co-hosting a PSI Balkans engagement on 14-16 April. Officials from 18 countries discussed WMD proliferation pathways, real-world case studies, and legal frameworks.

[State ACN Bureau @StateACN]

This week, the United States and Slovenia co-hosted a Proliferation Security Initiative (PSI) Balkans Regional Engagement, assembling 62 leaders from 18 countries. Together, they advanced efforts to implement export controls, sanctions, and counterproliferation initiatives.

Read more: https://t.co/FMaNHVVMbr

[Proliferation Security Initiative @ProliferationI]

Congratulations Nigeria on becoming the 116th member of the PSI community through its endorsement of the PSI’s Statement of Interdiction Principles!

[State ACN Bureau @StateACN]

#PSI TALLY NOW STANDS AT 116: Congratulations to Nigeria for its endorsement of the Proliferation Security Initiative! 116 states are now committed to interdicting WMD-related transfers consistent with national law and international obligations. https://t.co/Queh9KMH42

[Proliferation Security Initiative @ProliferationI]

Congratulations Thailand and U.S. on another successful PSI Southeast Asia Workshop!

[Proliferation Security Initiative @ProliferationI]

Congratulations Tonga 🇹🇴 on becoming the 115th state to endorse the Proliferation Security Initiative — this will deepen PSI partners’ ability to respond to any WMD proliferation threats in the Pacific region. We look forward to welcoming Tonga to future PSI events.

[Proliferation Security Initiative @ProliferationI]

Thanks Australia for hosting PSI Exercise Pacific Protector 2024. Experts from 29 countries met in Sydney 24-27 September and participated in a range of activities to strengthen counter-proliferation capabilities. APER joint statement⬇️
https://t.co/9i36IxDMbt

[Joint Operations Command @hqjoc]

Recently a @jmsdf_pao_eng P-1 Maritime Patrol Aircraft conducted a sortie on Exercise Pacific Protector, the @DefenceAust support to the Australian government’s hosting of the Proliferation Security Initiative forum in Sydney.

[Proliferation Security Initiative @ProliferationI]

Ahead of Exercise Pacific Protector 2024, the PSI’s 21 country Operational Experts Group (OEG) met in Sydney on Monday to discuss ways to further enhance and develop the objectives of the PSI in the face of emerging WMD proliferation challenges.

[Proliferation Security Initiative @ProliferationI]

The Proliferation Security Initiative welcomes and congratulates Chile on becoming the newest member of the PSI’s Operational Experts Group. From Sydney to Santiago and beyond, PSI partners are working together to help stop the spread of WMD!

[Proliferation Security Initiative @ProliferationI]

With Guinea-Bissau on board 114 states have now endorsed the PSI, a global initiative focused on enhancing capabilities against the trafficking of WMD and a key component of the global framework against WMD proliferation.

[Proliferation Security Initiative @ProliferationI]

Thank you Estonia for hosting #PSIBaltics2024 with over 60 representatives from 14 countries. Yet another example of the global importance of the PSI in building capabilities to stop the spread of WMD!

[Estonian MFA 🇪🇪 | 🌻 #StandWithUkraine @MFAestonia]

Global collaboration has a crucial role in preventing the spread of weapons of mass destruction. #PSIBaltics2024 provided a much needed venue for sharing best practices & strengthening the ties between like-minded countries.

[Proliferation Security Initiative @ProliferationI]

Congratulations to The Gambia on becoming the 113th PSI-endorsing state. The PSI provides participating states with a framework for strengthening counter-proliferation capabilities and is a vital component of global efforts to stem the spread of WMD!

[Proliferation Security Initiative @ProliferationI]

The PSI community recognises the significance of the 20th anniversary of UNSCR 1540. The PSI is fully consistent with, and assists countries in meeting, the international obligations articulated in #UNSCR1540 and elsewhere.
https://t.co/lKKvnD1BG9