Understanding the shift from traditional ballistic missiles to hypersonic vehicles and drone swarms.

For decades, the primary focus of strategic missile defense centered on countering intercontinental ballistic missiles (ICBMs). These threats followed predictable parabolic trajectories, offering defense systems a relatively long window for detection, tracking, and engagement. While challenging, the physics of their flight path allowed for established defense architectures and algorithms to calculate interception points with reasonable confidence.

Traditional ballistic missiles, once launched, were largely non-maneuvering during their mid-course phase. This predictability was a fundamental assumption built into early defense systems. Radars could lock onto the predictable path, and interceptors could be guided towards a calculated point in space where the two trajectories were projected to intersect.