SBO Watzlavick welcomed a Guatemalan Delegation @USEmbassyGuate under the @OPCW Mentorship Partnership Program and identified new opportunities for collaboration. We conducted site visits and panels featuring @CommerceGov @usarmy_devcom @doddtra @USCG @CBP @DHScwmd @CISAgov.

The U.S. has determined that the Government of Sudan used chemical weapons in 2024, violating its obligations under the Chemical Weapons Convention. As a result, we will impose new sanctions, including restricting U.S. exports to Sudan and the Sudanese government's access to U.S.

France 🇫🇷 was the United States' 🇺🇸 first ally and remains an important security partner. Today, Director for Strategic Affairs, Security, and Disarmament Guillaume Ollangnier visited the @StateDept to discuss the most pressing strategic challenges facing our two countries.

The U.S. congratulates Kiribati for joining the Biological Weapons Convention. All countries in the Asia-Pacific region are now party to this important treaty, a significant achievement as we celebrate its 50th anniversary year. Kiribati is doing its part to make the world safer!

“In this world events happen quickly, and we have to be able to move at the pace of relevance.” — @SecRubio to the Senate Foreign Relations Committee on reforms at the State Department

You can’t fight what you can’t see 👀 #B2Spirit stealth bombers returned home to Whiteman AFB from a deployment to Diego Garcia, British Indian Ocean Territory. @US_STRATCOM @AFGlobalStrike @usairforce

The DTRA partnership and training with the Kosovo Security Force (KSF) was put into action! The KSF recently responded to a real-world event where responders used the DTRA provided Chemical, Biological, Radiological, or Nuclear (CBRN) response training.

Secretary Rubio’s Meeting with Syrian Foreign Minister al-Shaibani https://t.co/oRoznIIZep

"America's Defense Industrial Base isn’t just about factories and production lines – it’s about the ability to respond to security challenges in real time." @StateDeptPM PDAS Stan Brown joined a panel @AviationWeek's Defense Conference to highlight new actions by President

Today we are sanctioning Iranian nationals contributing to nuclear weapons-relevant research and development. Our actions are part of @POTUS’s call for maximum pressure against Iran’s proliferation activities and to ensure Tehran is never able to obtain a nuclear weapon.

That’s a wrap on the #NPTPrepCom! Our work to preserve and strengthen this important Treaty will continue as we look forward the 2026 #NPTRevCom. 🕊️

On this Victory Day for World War II we commemorate the 80th anniversary of the Allied Powers’ triumph over national socialism and fascism, and the end of World War II in Europe — one of the most epic victories for forces of freedom in the history of the world. 🇺🇸

ISN Deputy Assistant Secretary Gonzalo Suarez advocates for a strengthened review process at the 2025 #NPTPrepCom. Read the U.S. statement here: https://t.co/55BsnV47ip

ISN’s Jim Warden champions American innovation and leadership in advancing peaceful uses of nuclear technology. Read the full #NPTPrepCom cluster 3 statement: https://t.co/55BsnV47ip

ISN DAS Suarez holds those who dismiss their obligations under the NPT accountable. Read the #NPTPrepCom cluster 2 statement here: https://t.co/55BsnV47ip

Honored to introduce you to my Deputy Spokesperson and Foreign Service Officer Mignon Houston delivering Tuesday's "After the Brief" roundup!

ISN Deputy Assistant Secretary Gonzalo Suarez calls upon states to uphold their nonproliferation obligations. Read our #NPTPrepCom cluster II statement here: https://t.co/55BsnV47ip

We are back on the floor to kick off week 2 of #NPTPrepCom! Stay tuned to see our efforts to strengthen the nuclear nonproliferation regime.

Yesterday, Acting Deputy Assistant Secretary Matthew Sharp took the floor at the #UN to deliver the United States' cluster 1 statement to the third #NPTPrepCom. Read it here: https://t.co/lahqCH3x7w

ISN Sr. Bureau Official Paul Watzlavick reaffirmed the U.S. commitment to the NPT at the 2025 #NPTPrepCom. Read the U.S. statement here: https://t.co/55BsnV47ip