Planned launch comes as Western countries worry about potential military action from Islamic Republic; previous Iranian launches have not been successful

Russian envoy calls meeting 'short and constructive'; Iranian negotiator insists positions are the same; Tehran's previous proposal had been deemed unacceptable by others

US Secretary of State Blinken says he is 'not hopeful' for a resolution of the negotiations 'based on what we've seen so far'

Opposition leader says current leadership failing to effectively lobby world against Iran the way he did when he was PM

Though not mentioning Iran, PM appears to indirectly bring up issue via Hanukkah reference

Tehran says it's waiting for counteroffers after US, European powers slam its new position as backtracking on previous compromises

Sheikh Tahnoon bin Zayed Al Nahyan holds talks with President Raisi and head of Iran's Supreme National Security Council, who describes relationship as 'warm and friendly'

Refusing to slow down advances in its atomic program, Tehran further raises the stakes in talks crucial to cooling years of tensions boiling in the wider Mideast

Defense minister slated to travel next week for meetings with US Defense Secretary Lloyd Austin and Secretary of State Antony Blinken

Nothing short of a credible military threat — and certainly not negotiations with a US leadership anxious to revive a failed accord — will deter the ayatollahs' nuclear drive now