Washington/Riyadh, July 14 -- US President Donald Trump gave Saudi Crown Prince Mohammed bin Salman his backing for military action against Yemen's Iran-backed Houthi movement before Saudi Arabia carried out strikes on Sana'a airport, according to two US officials.

The development comes amid the most serious escalation between Saudi Arabia and the Houthis since 2022 and has raised concerns that a four-year unofficial truce between the two sides could be collapsing.

According to US officials, Saudi Arabia informed Washington last week that it was increasingly concerned about the situation and sought support for possible military action against the Houthis.

As part of those discussions, Saudi Ambassador to the United States Princess Reema ...