Context
What happened: Iran sent the US a nuclear proposal through Qatar, a senior Iranian official told Reuters. Tehran says talks can happen only after Washington meets seven conditions.
Key numbers: Seven conditions include sanctions relief, release of frozen assets and war reparations. The US and Israel attacked Iran on February 28.
Why it matters: The US is reviewing the proposal. Iran's Mohsen Rezaei said Iran will neither open the Strait of Hormuz nor negotiate until the conditions are executed.