In response to recent Houthi attacks, Saudi Arabia is most likely to intensify airstrikes and outsource ground operations to its Yemeni allies, though more militarily and economically risky options, including a limited or even full-scale ground intervention in Yemen, remain on the table. Riyadh could also re-enter diplomatic talks to freeze the conflict, though this would risk emboldening Iran and undermining the Saudi-backed Yemeni government. On Oct. 10, Yemeni Houthi militants carried out drone strikes on Saudi Arabia's King Khalid International Airport in Riyadh, killing 13 people and wounding hundreds of others in the deadliest attack in a Gulf country since the start of the Iran war on Feb. 28. Amid a surge in Houthi attacks across the country, the Saudi government vowed revenge and began more intense airstrikes against the Houthis, including attacks against a crucial petroleum facility just outside of Yemen's capital, Sanaa.