Why are Houthi missiles breaking through Saudi Arabia’s air defences?

Yemen’s Houthis, also known as Ansar Allah, have launched waves of ballistic missiles, cruise missiles, and drones deep into Saudi Arabia since September, targeting King Khalid International Airport multiple times. An attack on Saturday killed 12 people and wounded 309, marking the deadliest strike in over a decade, leading to suspension of airport operations and flight diversions. The Houthis claimed two other attacks earlier this week and warned against using Saudi airports. Despite Saudi Arabia's advanced air defense systems, Houthi weapons have reached as far as Israel, demonstrating significant advancements in their missile and drone capabilities.