[4] China France India Iran Japan North Korea There have also been reports of other hypersonic glide vehicle being mounted on the other ballistic missiles.
Boost-glide weapons are generally designed to avoid existing missile defense systems, either by continually maneuvering or by flying at lower altitudes to reduce warning time.
This generally makes such weapons easier to intercept using defensive systems intended for lower-altitude "low-tier" targets.
Therefore, the terminal phase of an HGV's re-entry is similar to that of a multiple independently targetable reentry vehicle.
[citation needed] The superior evasion capabilities that HGVs employ are largely limited to the upper atmospheric flight span.