Escalating cross-border strikes define current dynamics, with Houthis launching repeated missile and drone attacks on Saudi airports, including deadly strikes on Riyadh's King Khalid International Airport in early October 2026 that killed at least 13 people, alongside threats against oil infrastructure. These actions followed Houthi territorial gains along Yemen's Red Sea coast in September and a Saudi-backed Yemeni government counteroffensive aimed at reclaiming areas near the Bab al-Mandab Strait. Saudi coalition airstrikes have targeted Houthi positions in Yemen, including Sanaa, while both sides exchange warnings of further retaliation. No confirmed ground incursions by Houthi forces into Saudi territory have occurred amid the asymmetric exchanges. Upcoming Saudi defensive measures, potential allied support, and the challenges of sustained ground operations across the border continue to shape assessments of any near-term entry.