Low tech: e.g. detect and destroy incoming weapons…if a single major power had this, it would bad. They maybe emboldened to use their weapons (both nuke and conventional), as their perfect defense would keep their assets (people, places, weapon systems) safe.
High tech: e.g. directed EMP type weapon that could eliminate any weapon world wide at launch, this would eliminate the MAD doctrine. No-one would be able to launch nukes at anyone. Conventional war would likely have the same driving factors that it does today. But also, it may not get “car bomb” nukes, so nuclear war still possible, just in a very different mode.
Super high tech: e.g. some crazy quantum detection and elimination of weapons that haven’t been fired. This would be terrible, basically the group/state that has this power eliminates its rivals ability to retaliate with a proportional response. They instantly become the major threat in the world, this would destabilize any alliances that they have, no one would believe them if they said that they also disabled their own nukes. This would put the world on the edge of WW3 in a heartbeat.
It would depend on the tech.
Low tech: e.g. detect and destroy incoming weapons…if a single major power had this, it would bad. They maybe emboldened to use their weapons (both nuke and conventional), as their perfect defense would keep their assets (people, places, weapon systems) safe.
High tech: e.g. directed EMP type weapon that could eliminate any weapon world wide at launch, this would eliminate the MAD doctrine. No-one would be able to launch nukes at anyone. Conventional war would likely have the same driving factors that it does today. But also, it may not get “car bomb” nukes, so nuclear war still possible, just in a very different mode.
Super high tech: e.g. some crazy quantum detection and elimination of weapons that haven’t been fired. This would be terrible, basically the group/state that has this power eliminates its rivals ability to retaliate with a proportional response. They instantly become the major threat in the world, this would destabilize any alliances that they have, no one would believe them if they said that they also disabled their own nukes. This would put the world on the edge of WW3 in a heartbeat.