Houthis escalate attacks on Saudi Arabia

US and UN warn of offensive to take Marib

Fighters ride in pickup trucks about 50km northwest of Marib last year (AFP/Getty)

As the United States prepared to announce its intention to remove the terrorism designation of Yemen’s Houthis last week, the militant group launched a drone attack on a Saudi airport in the southwestern city of Abha. The Saudi-led coalition said a civilian aircraft on the…