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He said he would attack his Western enemies from “ground, air, sea and underwater” in a sabre-rattling statement released through state media.

The propaganda press agency KCNA indicated the blood-thirsty despot was becoming increasingly agitated by the joint military drills south of the border.

A statement attributed to Kim said: “If they infringe on the DPRK's sovereignty and dignity even a bit, its army will launch merciless ultra-precision strikes from ground, air, sea and underwater.