Eisenhower remained skeptical throughout, questioning whether an effective ABM system could even be developed in the 1960s.

They can be categorized by the type of ABM system they are to operate against.

In 1971 work starting on the next generation of ABM systems - A135.

MissileThreat.com, a listing and descriptions of ABM systems around the world.

This would further reduce the amount of time the ABM system had to react.

Mobile components of ABM systems are prohibited by the 1972 treaty.

Too high for their ABM system but they let go a hell of a salvo.

By the mid-1950s things had changed considerably, and many forces worldwide were considering ABM systems.

The controversy was over whether to build the ABM system.

But politics dictated that I must support the ABM system.