Ballistic missile defense or BMD is one of the most difficult technological challenges in a battlefield.This is like hitting a bullet with another bullet.It requires high-end tracking sensors, a powerful fire control system, and potent interceptor missiles to work together.Only a few nations have been able to develop and deploy BMD.In this video, Defense Updates lists the top 7 Ballistic Missile Defense systems in the world. #defenseupdates #top7BMD #BallisticMissileDefense