1. Block III Virginia-class submarine USS Missouri (SSN-780) THAAD System: Advanced Missile Defense Joined the Service: 2010 Production Company: General Dynamics Electric Boat Price: $2.688 billion The Terminal High Altitude Area Defense (THAAD) system is an advanced defense mechanism designed to intercept short, medium, and intermediate-range ballistic missiles during their terminal flight phase. Developed by… Continue reading Defending Freedom at Any Cost: A Look at History's Most Expensive Military Vehicle Projects