"We delivered it privately and we're confident we're well-prepared," Biden told reporters at the White House before departing to the Camp David presidential retreat for the weekend.
The Houthi movement threatened a "strong and effective response" after the United States carried out another strike in Yemen overnight, further ratcheting up tensions as Washington vows to protect shipping from attacks by the Iran-aligned group.
The latest strike, which the US said hit a radar site, came a day after dozens of American and British strikes on Houthi facilities in Yemen. READ MORE
