Saudi Arabia's $70B Defense Shield Fails Against Houthi Drones

Saudi Arabia spends tens of billions of dollars every year on defense. Yet the kingdom cannot protect its airports, oil refineries, and pipelines from Houthi missile and drone attacks launched from Yemen. The country has bought advanced weapons from the United States and Europe. It operates multi-layered air defense systems. But these tools have not stopped the Houthis from striking deep inside Saudi territory. The gap between massive spending and real protection raises a serious question: why is one of the world's biggest arms buyers still vulnerable to a rebel group?