Europe supports the U.S. demand for Iran to stop all uranium enrichment, presenting a broad proposal covering Iran’s nuclear and missile programs as well as regional issues. Iran criticized the U.S. for skipping the talks, calling it a diplomatic betrayal. Experts say the “zero enrichment” demand is unlikely to succeed and may hinder negotiations, as most plans allow limited enrichment for peaceful use. Europe aims to mediate between the U.S. and Iran despite no direct talks yet.