President Donald Trump and his top national security officials spent much of their day in the Netherlands working to rebut an early intelligence report that assessed weekend US strikes against Iranian nuclear facilities did not destroy the core components of the country’s nuclear program and likely only set it back by months.

The leaders reaffirmed their “ironclad commitment” to NATO’s collective defense clause, Article 5. In recent years, Trump had sowed seeds of doubt about whether the U.S. — NATO’s most powerful member — would come to the aid of any ally under attack.

President Trump wrapped a NATO summit by defiantly defending his Iran strikes and changing his tune about alliance members' defense spending.