The United States developed the first nuclear weapons during World War II in cooperation with the United Kingdom and Canada as part of the Manhattan Project, out of the apprehension that Nazi Germany would develop them first. TEHRAN (Tasnim) – Iran’s ambassador to the UN said military aggression by the US and the Israeli regime against Iran has disrupted regional stability, damaged energy infrastructure, and endangered global supply chains and energy security. Little progress on nuclear issue. President Trump's core war goal was to deny Iran the ability to develop anuclear weapon, something Iran has said it never planned to do. This, however, had also been a years-long objective of US-led diplomacy. Iran had previously agreed to forgo the development of nuclear weapons as a signatory to the Nuclear Nonproliferation Treaty, which has been in force since 1970. However, after the overthrow of the Pahlavi dynasty in 1979, Iranian leaders secretly pursued this technology. Iran and the United States are set to resume Omani-mediated nuclear negotiations in Geneva amid rising regional military tensions. The Trump administration has escalated pressure through naval deployments and warnings, while Tehran signals cautious openness to diplomacy. In September 2019, when Iranian-backed groups threatenedglobal energy markets by attacking Saudi oil infrastructure, Trump failed to respond against Iran or its proxies. Iran's nuclear ambitions and Syria's chemical weapons threatenglobalstability, not “Israeli settlement” expansion, said PM Netanyahu. Stay on top of Iran latest developments on the ground with Al Jazeera’s fact-based news, exclusive video footage, photos and updated maps.