Sweden To Receive First Delivery Of World’s Most Advanced Air Defense Missile Lockheed Martin successfully delivered Sweden’s first Patriot Advanced Capability-3 (PAC-3) Missile Segment Enhancement (MSE) interceptors in April, providing the country with the world’s most advanced air defense missile that uses Hit-to-Kill technology to defend against incoming threats. “By choosing PAC-3 MSE for missile defense, our customers around the world know they have the combat-proven technology needed to stay ahead of rapidly-evolving threats,” said Brenda Davidson, vice president, PAC-3 Programs, Lockheed Martin Missiles and Fire Control. “We’re proud to deliver this advanced capability to Sweden so they can best defend their armed forces, citizens and infrastructure.”