The British military launched airstrikes with the United States targeting Yemen’s Houthi rebels. The strikes Tuesday night marked their first involvement with America’s new intense campaign targeting the Iranian-backed group.

British warplanes have attacked Houthi targets in Yemen, joining ally the United States in its airstrikes targeting the Iran-backed militia.

Britain’s military launched airstrikes against Houthi targets in Yemen on Tuesday with US forces, its defense ministry said – the first public acknowledgment of a joint operation since the Trump administration escalated the US campaign against the militant group.