The United States has unveiled a tough 15-point ceasefire proposal aimed at stopping its ongoing war with Iran. The plan demands that Tehran dismantle major nuclear sites, halt uranium enrichment, hand over enriched stockpiles, limit its missile programme and pull back support for regional proxies. In return, Washington offers full sanctions relief, support for Iran's civilian nuclear energy and removal of the snapback mechanism. Iran has publicly dismissed the plan, calling it a sign of American failure, while signalling its own demands, including an immediate end to the war and no restrictions on missiles. The proposal now raises urgent questions about whether diplomacy can keep pace with escalating military action.