The US and its allies currently deploy several ballistic missile defence systems that would be used in the event North Korea actually launched an attack.
Reuters/KCNA
Intercontinental ballistic missiles, such as the one tested by North Korea this week, fly far too high and fast for current missile defence systems to engage with.
A North Korean ballistic rocket launching drill, undated photo.
REUTERS/ North Korea's Korean Central News Agency (KCNA)
Tensions in Asia may soon boil over. If U.S. leaders fail to seek pathways to peace, the consequences may be grim, warns former National Security Council member.
Should Australia seek a ballistic missile defence capability, like that of the United States?
US Department of Defense
North Korea does not yet have the capacity to launch a nuclear missile from a submarine. Its recent test, however, suggests it is making progress to a game-changing second-strike capability.