The United States Secretary of State Mike Pompeo declares the 2015 nuclear accord with Iran as no longer in force. He also warns that the United States "is prepared to use our domestic authorities to impose consequences" for other countries that do not enforce the sanctions. Britain, France, Germany, China, and Russia oppose the snapback sanctions.
The United Nations Security Council has resoundingly rejected a United States bid to extend a global arms embargo on Iran. In a Security Council vote, United States only got support from the Dominican Republic for its resolution to indefinitely extend the arms embargo on Iran, leaving it far short of the minimum nine "yes" votes required for adoption. Eleven members on the 15-member body, including France, Germany and the United Kingdom, abstained while Russia and China opposed extending the ban but did not need to use their vetoes.
The United Nations Security Council meets amid concerns of military strikes in Syria by the United States and its allies following a suspected chemical weapons attack in Syria last weekend, with the United States ambassador to the UN, Nikki Haley, accusing Russia of lies and covering for the government of Syrian President Bashar al-Assad, which she said had used chemical weapons at least 50 times in the past seven years of warfare, and the Russian ambassador to the UN, Vassily Nebenzia, blaming the United States, France and the UK for escalating tensions.
Following Russia and the United States agreement on the text, the U.N. security council unanimously approves an international roadmap for a peace process in Syria. The resolution does not touch on the question of Bashar al-Assad's fate.
Iran, the United States, the United Kingdom, France, Russia, People's Republic of China, Germany, and the European Union (the P5+1) reach a breakthrough agreement on the general framework for an agreement on Iran's nuclear program, but sign no verbal agreement or official document. The deadline for a full deal is June 30, 2015.
The UN Security Council fails to agree a statement to condemn the killing of Syrian protesters, as Russia and China block a statement proposed by Britain, France, Germany and Portugal that would have condemned the violence, which has led to hundreds of dead, and backed calls for an independent investigation.