Israel has carried out attacks on Iran's nuclear facilities, alleging Tehran was getting close to obtaining a nuclear weapon.

Iran doesn’t have nuclear weapons. But it has enriched nuclear fuel to levels that put it within weeks of having enough fissile material for a bomb. Still, Iran hasn’t proved it can build a reliable nuclear device or miniaturize one to fit atop a ballistic missile.

President Donald Trump has dismissed the assessment of U.S. spy agencies that Iran wasn’t building a nuclear weapon before the latest conflict with Israel