Reto Wollenmann

Good to see that some in Europe still believe in international law. Kudos to Norway and Switzerland!

I joined top-tier labs from around the world in Spiez this week to celebrate 10 years of the #UNSGM lab network. Congrats on the many successes and warm thanks to the @SpiezLab team and @SecurityPolCH for, as always, outstanding hosting.

#CCWUN Productive work to address challenges posed by autonomous #Weapon systems 🇨🇭 pleased to co-lead with 🇧🇷🇮🇪🇳🇴 a joint statement by 42 States affirming that work has sufficiently progressed to now move ahead towards the negotiation of an instrument #geneva #Working4Peace

Opinion: There's a ground-breaking deal that Trump and Putin could actually reach in Alaska: nuclear arms control, write @SahilV_Shah and @KomissarWhipla. politico.com/news/magazine/…

80 years ago, nuclear weapons were used for the first time. Today we remember the victims of the bombings at Hiroshima and Nagasaki. But nuclear risks are on the rise again. Any miscalculation or failure could be catastrophic. A nuclear war cannot be won and must never be fought. 🇨🇭 calls to: 🔹 Strengthen the #NPT 🔹 Reduce nuclear risks 🔹 Re-build trust between nuclear powers #Hiroshima80 #Nagasaki80 #Disarmament #NuclearRiskReduction

Today, on the final day of the #NPT PrepCom, Ireland delivered a 🇮🇪🇨🇭🇳🇿-led statement on behalf of 5️⃣8️⃣ States on the issue of transparency & accountability. We look forward to advancing this issue as an important contribution to unlocking progress on nuclear #disarmament ahead of the 2026 RevCon.

Nuclear risk reduction is a key part of disarmament & essential while nuclear weapons persist. 🇨🇭🇩🇪+@IST_org & @VCDNP will co-host a side event at #NPTPrepCom on Preventing & Managing Nuclear Crises in the 21st Century. 
🗓️30 April 🕐1:15–2:30pm WebTV: webtv.un.org/en/asset/k10/k…

Today🇨🇭🇮🇪🇳🇿& @UNIDIR co-host a side event at #NPTPrepCom: “Exploring interactive reporting for the NPT” 🕐1:15–2:30pm EST📍UNHQ CR5 Launch of @UNIDIR’s report on transparency & accountability. Robust reporting is key for the implementation & credibility of NPT commitments.

Treaty on the Prohibition of Nuclear Weapons: Switzerland🇨🇭 participates as an observer in the Third Meeting of States Parties #3MSP of the #NuclearBanTreaty 🇺🇳.   We closely follow the debates around NPT complementarity, #HumanitarianConsequences and other key issues.

At @REAIMSummit in 🇰🇷 State Secretary Mäder🇨🇭 opens a packed Breakout Session with @SIPRI on opportunities and limitations of AI in military decision-making. Thanks to @ICRC @HLSPILAC @GeorgeMasonU @SwissIntLaw @SwissAMBSeoul for their valuable support. rb.gy/42fawj

Joint #NPT call by 🇦🇷🇦🇺🇧🇷🇨🇦🇫🇮🇫🇷🇩🇪🇬🇭🇮🇪🇯🇵🇰🇿🇲🇽🇵🇭🇸🇪🇨🇭🇰🇷🇹🇭🇬🇧🇺🇸 for urgent development of concrete, credible, and practical measures that could reduce the risk of nuclear weapon use. Pending the elimination of nuclear weapons, risk reduction goes hand in hand with disarmament.

It’s been my priority from the very start to run a process that moves us step by step, piece by piece, towards convergence. I have done so in good faith, and relied on your good faith, to make the process work. The next hours are critical. #Revcon4

Delighted to host the 10y anniversary of the International Partnership for Nuclear Disarmament Verification #IPNDV in Geneva 🇨🇭. For 10 years, the #IPNDV has brought together experts from 30 countries to address nuclear disarmament verification challenges. buff.ly/3xk60NW

@GaukharM @UN You were amazing! Thanks for reminding the Council of RES984 and proposing that the NWS issue pledges on NRR / and measure to strengthen no use, and formalise this in a similar RES…!

Thank you all so much for following the @UN Security Council briefing today and for your responses. #Nuclear weapons must never be used again.

Welcome Amb Matteo Fachinotti. Grateful for @SwissMFA’s @ignaziocassis support to the IAEA in establishing the 5 protection principles for ZNPP & I look forward to enhancing already strong partnership in flagship initiatives, such as #RaysOfHope.

As the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty (CTBT) meets in Vienna, 🇨🇭 deplores Russia’s revocation of its ratification of the Treaty and calls upon all States to ratify the #CTBT without delay.

🇨🇭 in #Malta meeting on 🇺🇦 #PeaceFormula 👉works w/ states from all🌍regions for comprehensive, just & lasting peace in accordance w/ UN Charter 👉 fully supports plan by @ZelenskyyUa 👉 engages on Nuclear Safety, Food Security, Confirmation of End of War tinyurl.com/52bemc25

Lots of discussion on #bioweapons #1972BWC the past week in #UNGA #FirstCommittee. Catch up on all the news here: reachingcriticalwill.org/images/documen…

At @UNIDIR Event, 🇨🇭 stresses that, along with the risks posed by autonomous weapons, we need to focus on "upstream" capabilities and address challenges across different applications and contexts. Guardrails might be required beyond the selection of targets and the use of weapons

Der Schutz von Nuklearanlagen ist Frage der Achtung des humanitären Völkerrechts. Die #Schweiz 🇨🇭 engagiert sich stark für nukleare #Sicherheit. An der #UNGA78 kündigte BR @ignaziocassis gegenüber @rafaelmgrossi Unterstützung von 1 Mio. CHF für @iaeaorg Missionen in der 🇺🇦 an.