(Updated from original version published July 6, 2017) One of the catalytic forces behind the pursuit and conclusion of the new Treaty on the Prohibition of Nuclear Weapons in recent years has been the voices of the hibakusha, the survivors of the atomic bombings of the cities of Hiroshima and Nagasaki, as well as the people across the globe who have been adversely affected by more than seven decades of nuclear weapons production and testing. The preamble of the new prohibition treaty, which was opened for signature at UN headquarters in New York on September 20, notes “the unacceptable...

(Reporting from Rome) Pope Francis firmly condemned the possession of nuclear weapons for the first time at a Vatican conference on disarmament, a significant move that extends the Roman Catholic Church’s position on the immorality of nuclear weapons. The Nov. 10-11 conference was hosted by the Holy See’s Dicastery for Integral Human Development to discuss the steps toward a world without nuclear weapons. Cardinal Peter Turkson, the head of the dicastery, warned of the “increasing drumbeat of a possible nuclear conflagration” and said that a candid conversation is urgently needed on how to...

Statement from Daryl G. Kimball, executive director Now is the time to put responsible checks on the use of nuclear weapons and to consider changes in outdated, Cold War-era U.S. policy that reduce the risk of nuclear use and ensure that the sole purpose of nuclear weapons is deterrence. We strongly support the bill introduced by Rep. Adam Smith, the ranking Democrat on the House Armed Services Committee, to establish that it is the policy of the United States not to use nuclear weapons first. Widespread, bipartisan concerns about cavalier and reckless statements from President Donald Trump...

In his high profile address to the South Korean National Assembly Nov. 8, President Donald Trump missed a crucial opportunity to clarify and adjust his administration’s disjointed and, at times, reckless policy toward North Korea. Although Trump indicated earlier today in a press conference in Seoul that he is "open" to talks with North Korea, he has also said in recent days that now is not the time for such talks but instead it is time to apply “more pressure” on North Korea to bring North Korea to bargaining table and to agree to eliminate its nuclear program. While in Asia, Trump has also...

Russia’s dangerous disregard for holding Syria accountable for using chemical weapons reached a new high Tuesday as Russia’s permanent representative to the UN vetoed a resolution to extend the mandate of the independent investigative body charged with assigning blame to parties that use chemical agents in Syria. The body, known as the Joint Investigative Mechanism (JIM), is a United Nations – Organization for the Prohibition of Chemical Weapons partnership forged in August 2015 to bring accountability to chemical weapons attacks in Syria . Thus far, it has found the Assad government guilty...

Trump’s “Decertification” Decision Sets Washington Up to Violate the Nuclear Deal As expected, President Donald Trump announced Oct. 13 he would not issue a certification to Congress required by U.S. law that is tied to the nuclear deal with Iran, known as the Joint Comprehensive Plan of Action (JCPOA). While withholding certification does not, by itself, violate the 2015 multilateral nuclear deal and Trump said the United States is staying in the agreement for now, his proposed policy toward the deal sets the United States on a course to violate the accord, further isolate Washington from...

This post originally appeared in War on the Rocks . If you thought “repeal and replace,” or perhaps, “repeal and not replace,” was only a strategy for the botched Obamacare repeal effort, you’d be wrong. It seems to also describe the game plan of President Donald Trump and Republican hawks in Congress when it comes to the agreements and norms that underlie the global nonproliferation regime. The Trump administration and Congress face critical decisions over the next several months that could have bigly consequences for the international nuclear order. These include whether to continue...

While Russia completing the destruction of its once 40,000-metric-ton chemical weapons arsenal last week is cause for celebration, its continued denial of the Assad regime’s use of deadly chemical weapons in Syria is most certainly not. Russia, which destroyed all of its chemical weapons due to its obligation as a state-party to the 1993 Chemical Weapons Convention (CWC), nevertheless still shields the deliberate and inexcusable violation of the CWC by another state-party, Syria. Syria joined the CWC after international outrage erupted following a brutal chemical attack in a Damascus suburb...

Before taking action to undermine or violate the nuclear deal with Iran, President Donald Trump and the U.S. Congress would be wise to heed the words of Washington’s European partners in the deal, namely that the agreement is working and renegotiation is futile. Ambassador David O’Sullivan of the European Union, Ambassador Peter Wittig of Germany, Ambassador Gerard Araud of France, and Ambassador Kim Darroch of the United Kingdom, joined forces to deliver these messages at the Atlantic Council Sept. 25 , just three weeks ahead of the Oct. 15 deadline for Trump to issue or withhold a...

This op-ed originally appeared in Fortune. The nuclear danger posed by North Korea is not new. For more than a decade, the Kim regime has possessed nuclear weapons and has been steadily pursuing the capability to develop compact warheads and longer-range missile systems. But since the arrival of Donald Trump in the White House, a bad situation has become far worse. North Korea has accelerated its missile testing and Trump has vowed a military attack against North Korea if it threatens the U.S. or its allies. The risk of conflict through miscalculation by either side is now as severe as the...