Consider what happens when effective ballistic missile defense is developed. This still leaves the threat of tactical nuclear weapons (artillery) and short rang

Consider what happens when effective ballistic missile defense is developed. This still leaves the threat of tactical nuclear weapons (artillery) and short range missiles from submarines. It will also spur the development of improved ballistic missile delivery systems. However, if technology brings MAD into question and causes a shift in thinking to acceptable risk/losses, we may find ourselves in a destructive situation very reminiscent of 100 years ago.