On November 4, Yemen’s Houthi rebels fired a ballistic missile at King Khalid International Airport in Riyadh. Saudi forces said they intercepted the missile but the Houthis hailed the launch as a success. A Houthi spokesman told Al Jazeera that the Burkan 2-H, a type of Scud missile, traveled more than 800 kilometers to its target. It was the first time the Houthis had attacked the Saudi capital.

The Trump administration has cited North Korea’s attainment of nuclear weapons and increasingly advanced missiles as a key reason for reexamining the 2015 nuclear deal with Iran. “What we're saying now with Iran is don't let it become the next North Korea,” U.N. Ambassador Nikki Haley said on October 15.