Iran-US war latest: Tehran threatens Trump with ‘painful strikes’ amid reports US preparing fresh attacks

Key Points:

• Iran has threatened the US and Middle Eastern countries with "painful strikes" if any mistakes are made against Iran, responding to intelligence reports that the US plans to resume actions against Tehran with regional support.
• President Trump cut short his stay at Camp David and returned to the White House amid escalating Middle East tensions, stating he is in "deciding mode" on whether to take severe military action against Iran, including the possibility of "blowing the whole nation up."
• The US military estimates the cost of the ongoing Iran war has risen to $43.6 billion as of early September 2026, with monthly expenses continuing to accumulate depending on conflict intensity.
• Saudi Arabia confirmed that Yemen's Iran-backed Houthi rebels attempted a ballistic missile attack on Riyadh, marking the first such strike on the capital since the conflict escalated, though the missile was intercepted with no reported casualties.
• Arab and Muslim nations, including Egypt, Jordan, and Kuwait, condemned the Houthi missile attack on Riyadh as a violation of international law and a threat to regional stability, expressing solidarity with Saudi Arabia.