
The Iran nuclear deal failed because the United States unilaterally withdrew from the agreement and reimposed sanctions, prompting Iran to progressively abandon its commitments and accelerate its nuclear program.
Both sides lacked sustained political will to preserve the accord amidst shifting geopolitical priorities and domestic pressures.
The US withdrawal in 2018 critically undermined the deal, leaving European signatories unable to provide the promised economic relief. In response, Iran intensified its nuclear activities, believing it gained no benefit from adherence without sanctions relief, pushing its program well beyond JCPOA limits.
Today, Iran openly operates without the deal's restrictions, a situation underscored by 72 tracked signals related to Iran and 22 for Nuclear Weapons. Recent events, such as the "IRGC attacks US unmanned vessel in Hormuz; two ships hit," demonstrate Iran's hardened posture and continued pursuit of strategic deterrence amid severe economic hardship.