How reliable are North Korean ICBMs that theoretically have the range to reach the west coast of the United States?
Short answerNorth Korea has put serious effort into them, but quality control remains uncertain, and proof of reliable US reach would trigger a much stronger American missile-defense response.
NotesThe assessment separates advertised range from dependable operational capability. North Korea has invested heavily, although the reliability of its quality control remains doubtful. A convincing demonstration that missiles could repeatedly reach the United States would sharply change American threat perceptions. Such proof would probably drive a major expansion of ballistic-missile defences, so the strategic balance would depend on offensive credibility and the defensive reaction.