White House promises retaliation against Iran proxy group: 'The first thing you see won't be the last'

White House national security spokesman John Kirby reiterated Wednesday that the U.S. will respond after three American soldiers were killed in a drone attack by an Iran-backed proxy group. President Biden on Tuesday blamed Iran for providing weapons to the militant groups that perpetuated the attack and said he had decided how to respond but did not offer further details. But with no public action in the days since the attack, a reporter asked Kirby whether the White House had missed an opportunity to signal resolve. "I think we signal resolve pretty well. And as I said the other day, we'll respond on our own time, on our own schedule, and we'll do that," Kirby said at the daily White House press briefing.