North Korea is powerless to prevent a U.S. strike on its nuclear program, but retaliation is well within its means. The significant military capability that North Korea has built up against South Korea is not advanced by Western standards, but there are practical ways Pyongyang could respond to aggression… The most significant threat from North Korea’s ballistic missile stockpile is the potential for a nuclear strike. Some estimates indicate North Korea may have between two and five nuclear warheads at its disposal already, at least some of which could be made to fit on a Nodong missile. – The National Interest Photo: Sputnik